Lab 7_ Moments of Inertia
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Apr 3, 2024
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Lab 7: Moments of Inertia
Group Members: Joe Vlassakis, Amir Crump
Goals: The Goal of this lab is to become familiar with how inertia affects your ability to change the
direction of rotation of an object while using Newton’s 2nd law of rotational motion.
Procedure: To start the experiment both of us grab the barbells placed on the lab tables and
proceed to hold them out facing each other and begin to move the barbell back and forth in a
twisting motion, then measure out to find the r or the radius and do it for both barbells. For part 2
we set up the rotational motion sensor, hung a 5-gram disk off of the sensor and created a graph on
Pasco labeled for angular velocity vs time. Once you have set up the second part of the experiment
you start the sensor and record the increase in angular velocity, once you have recorded the data for
the outer radius position to the inner radius position collect all your data and plug the data into a
table and answer the remaining questions
Error and Precaution: The cause for error during the experiment could have come from
miscalculation because one rounding error could be cause incorrect values
Results:
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Related Questions
1.
Mechanical structure of 3-DOF RPY wrist is shown in Figure 1
Joint 1
Joint 2
Joint 3
Tool point
P
Arm end
Roil
Pitch
Yaw
Figure 1 3-DOF RPY wrist configuration
Formulate the forward kinematic model and describe the steps for frame assignment to the links of the
given manipulator.
b. Determine the D-H parameters of the tool point P with respect to the base for the 3 DOF manipulator
а.
Compute the orientation and position of the too point P for the displacement variable el=60°, e2=120° and
ө3-30°.
с.
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University Physics 1 - Rotation, Angular momentum, and Torque
I need help with this problem and an explanation of the solutions described below:
- A torque meter stick experiment
For each 3 experiments (Image of the data is below), calculate the net clockwise and counterclockwise torques acting on the meterstick. Show the full calculation being done with all numbers identified.
Experiment 1 Experiment 2 Experiment 3
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Need help with this engineering dynamics review
The rocket is initially in free-flight circular orbit around the earth. Suppose that a= 18 Mm and b= 6 Mm.
Part A
Determine the speed of the rocket at A.
Express your answer to three significant figures and include the appropriate units.
(vA)C =
Part B
What change in the speed at A is required so that it can move in an elliptical orbit to reach point A′?
Express your answer to three significant figures and include the appropriate units.
Δv =
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15°
Deltoid
17 cm
38 cm
A worker is holding his arm straight out parallel to the
ground as he grabs a tool. His arm is perfectly straight. Use
the information given in the picture and below to solve
problem 3.
a) Draw and label the free body diagram of all forces on
the shoulder
b) Calculate the force of the deltoid using the sum of the
moments.
c) Find the vertical reaction force of the shoulder. Is it
acting "up" or “down"
d) If the maximum tensile force of the deltoid muscle is
1000 [N], what is the maximum weight of a tool that
the worker can carry in this exact position?
Weight of the arm = 2.5[kg]
Weight in the hand (tool) = 2[kg]
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Please Help me
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Learning Goal:
To understand Newton's law of universal gravitation and be able to
apply it in two-object situations and (collinear) three-object
situations; to distinguish between the use of G and g.
In the late 1600s, Isaac Newton proposed a rule to quantify the
attractive force known as gravity between objects that have mass,
such as those shown in the figure. (Figure 1) Newton's law of
universal gravitation describes the magnitude of the attractive
gravitational force Fg between two objects with masses m₁ and
m₂ as
F₁ = G ( m₂
where r is the distance between the centers of the two objects and
G is the gravitational constant.
Figure
m1m2
The gravitational force is attractive, so in the figure it pulls to the
right on m₁ (toward m₂) and toward the left on m2 (toward m₁).
The gravitational force acting on m₁ is equal in magnitude to, but
exactly opposite in direction from, the gravitational force acting on
m2, as required by Newton's third law. The magnitude of both
forces is…
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1
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EXPERIMENT 4: “Addition of Forces and Vectors”
1. What is “Translational Equilibrium”?
2. Briefly explain " Graphical Method", and "Analytical Method" of performing the "addition of forces and vectors" in this lab.
3. What does “percent difference” represent in this experiment?
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In this week's lab, we will apply an impulse (i.e. a force from our hand) to impart an initial velocity upon Cart 1 (the blue cart in the figure below). Cart 1 will then undergo a collision with Cart 2. Each cart may have a different mass. We will analyze two scenarios:
i) Magnetic bumpersii) Velcro bumpers
What are the requirements for energy to be conserved in a collision?
What are the requirements for momentum to be conserved in a collision?
What are the differences between an elastic and inelastic collision?
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Choose the correct letter
We can apply the laws of conservation of linear momentum and angular momentum to the description of the motion of rigid bodies because
A. Forces that maintain constant distances between different pairs of point masses are internal forces (i.e. forces of constraint)
B. Forces of constraint come in pairs and obey Newton’s third law (i.e. they are equal and act along the same line of action)
C. In any displacement the relative distances and the orientations of different particles remain the same with respect to each other
D. No network is done by the internal forces or the forces of constraint
E. All of the above are correct
F. None of the above is correct
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please answer this question in 20 minutes. i will upvote
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B. Exercises for Skill Subjects/Analysis Questions Using HOTS for Content Subjects
Exercise 1: Calculate me!
A 100-gram ball m1, and a 200-gram ball m2, connected by a rod with a length of 60 cm.
the mass of the rod is ignored. The axis or rotation is located at the center of the rod. What
is the momentum of inertia of the balls about the axis rotation?
Illustration:
A
Ace
m1
m2
B
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can you help with number 1?
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What is the purpose of the pointer in the Sargent-Welch apparatus? Mark all that apply.
a. It provides a frictional force on the bob to slow down the rotation
b. It provides a visual guide to the experimenter to determine the correct weight to put in the bucket
c. It provides a visual guide to the experimenter to determine the correct rotational speed
d. It provides a normal force on the bob to counteract the bob's weight
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Example
An experimental device imparts a force of magni-
tude F = 225 N to the front edge of the rim at A to
simulate the effect of a slam dunk. Determine the
900 mm
700 mm
F
moments of the force F about point O and about
point B. Finally, locate, from the base at 0, a point C
on the ground where the force imparts zero moment.
B
300 mm
3050 mm
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١٠
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Q3 p
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The class I'm taking is physics for scientists and engineers!
**I just need help with part G**
I have attached the problem below! Please view both attachments before answering. If you can please explain your answer so I can fully understand. Thank you so so much!
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F1
RDY
RAY
The figure above is a pin-joint frame with horizontal member length l = 3m and vertical member length h = 5m. (Note that the diagram is not to scale.)
You are given that F = 48KN, RAY = 16KN and Rpy = 32kN.
Use the method of sections to calculate the forces in members BC, FC and FE.
Enter your answers in kilonewtons (kN) correct to 2 decimal places.
Enter FBC :
kN
ype here to search
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4
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REPRESENT/SOLVE/COMMUNICATE
A carousel has a radius of 17 feet and takes 30 seconds to make one complete revolution. What is the LINEAR speed of the carousel at its outside edge? Express your answer in feet per second.
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How do you solve for this?
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a.) If an object is already moving and you applied another force parallel to it and with the same direction, does this mean that another counter force will be generated? Explain.
b.) Considering question (a), what if you applied a force lower than the force of momentum (and gravity, etc.) on the object, will it generate a counter force? Explain.
c.) On our activity, pushing the object at rest generates a counter force. How is this?
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Please help with 9-10 for this fbd on circular motion
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this isn’t for a grade lol
, I just need help , thank you!
asap ,it’s just for review
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I have been working on this problem for a while now and keep getting wrong answers.
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Need help with Physics problem quick please.
As a roller coaster car crosses the top of a 40m
diameter loop-the-loop its apparent weight is the same as its
true weight. What is the car’s speed at the top
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Learning Goal:
Once you have decided to solve a problem using Newton's 2nd law, there are
steps that will lead you to a solution. One such prescription is the following:
• Visualize the problem and identify special cases.
• Isolate each body and draw the forces acting on it.
●
Choose a coordinate system for each body.
Apply Newton's 2nd law to each body.
Write equations for the constraints and other given information.
• Solve the resulting equations symbolically.
• Check that your answer has the correct dimensions and satisfies
special cases.
●
●
●
If numbers are given in the problem, plug them in and check that
the answer makes sense.
• Think about generalizations or simplifications of the problem.
As an example, we will apply this procedure to find the acceleration of a block of
mass m₂ that is pulled up a frictionless plane inclined at angle with respect to
the horizontal by a massless string that passes over a massless, frictionless
pulley to a block of mass m₁ that is hanging…
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The uniform 25-kg plate is released from rest at the
position shown. (Figure 1)
Determine its initial angular acceleration.
Express your answer in radians per second squared to three significant figures. Enter positive value if the angular
acceleration is clockwise and negative value if the angular acceleration is counterclockwise.
• View Available Hint(s)
vec
?
a =
rad/s?
Figure
1 of 1
Submit
A
Part B
Determine the x and y components of reaction at the pin A using scalar notation.
Express your answers in newtons to three significant figures separated by a comma.
0.5 m
• View Available Hint(s)
VO A£O vec
?
0.5 m
Az, Ay =
N
P Pearson
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SEE MORE QUESTIONS
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Related Questions
- 1. Mechanical structure of 3-DOF RPY wrist is shown in Figure 1 Joint 1 Joint 2 Joint 3 Tool point P Arm end Roil Pitch Yaw Figure 1 3-DOF RPY wrist configuration Formulate the forward kinematic model and describe the steps for frame assignment to the links of the given manipulator. b. Determine the D-H parameters of the tool point P with respect to the base for the 3 DOF manipulator а. Compute the orientation and position of the too point P for the displacement variable el=60°, e2=120° and ө3-30°. с.arrow_forwardUniversity Physics 1 - Rotation, Angular momentum, and Torque I need help with this problem and an explanation of the solutions described below: - A torque meter stick experiment For each 3 experiments (Image of the data is below), calculate the net clockwise and counterclockwise torques acting on the meterstick. Show the full calculation being done with all numbers identified. Experiment 1 Experiment 2 Experiment 3arrow_forwardNeed help with this engineering dynamics review The rocket is initially in free-flight circular orbit around the earth. Suppose that a= 18 Mm and b= 6 Mm. Part A Determine the speed of the rocket at A. Express your answer to three significant figures and include the appropriate units. (vA)C = Part B What change in the speed at A is required so that it can move in an elliptical orbit to reach point A′? Express your answer to three significant figures and include the appropriate units. Δv =arrow_forward
- 15° Deltoid 17 cm 38 cm A worker is holding his arm straight out parallel to the ground as he grabs a tool. His arm is perfectly straight. Use the information given in the picture and below to solve problem 3. a) Draw and label the free body diagram of all forces on the shoulder b) Calculate the force of the deltoid using the sum of the moments. c) Find the vertical reaction force of the shoulder. Is it acting "up" or “down" d) If the maximum tensile force of the deltoid muscle is 1000 [N], what is the maximum weight of a tool that the worker can carry in this exact position? Weight of the arm = 2.5[kg] Weight in the hand (tool) = 2[kg]arrow_forwardPlease Help mearrow_forwardLearning Goal: To understand Newton's law of universal gravitation and be able to apply it in two-object situations and (collinear) three-object situations; to distinguish between the use of G and g. In the late 1600s, Isaac Newton proposed a rule to quantify the attractive force known as gravity between objects that have mass, such as those shown in the figure. (Figure 1) Newton's law of universal gravitation describes the magnitude of the attractive gravitational force Fg between two objects with masses m₁ and m₂ as F₁ = G ( m₂ where r is the distance between the centers of the two objects and G is the gravitational constant. Figure m1m2 The gravitational force is attractive, so in the figure it pulls to the right on m₁ (toward m₂) and toward the left on m2 (toward m₁). The gravitational force acting on m₁ is equal in magnitude to, but exactly opposite in direction from, the gravitational force acting on m2, as required by Newton's third law. The magnitude of both forces is…arrow_forward
- 1arrow_forwardEXPERIMENT 4: “Addition of Forces and Vectors” 1. What is “Translational Equilibrium”? 2. Briefly explain " Graphical Method", and "Analytical Method" of performing the "addition of forces and vectors" in this lab. 3. What does “percent difference” represent in this experiment?arrow_forwardIn this week's lab, we will apply an impulse (i.e. a force from our hand) to impart an initial velocity upon Cart 1 (the blue cart in the figure below). Cart 1 will then undergo a collision with Cart 2. Each cart may have a different mass. We will analyze two scenarios: i) Magnetic bumpersii) Velcro bumpers What are the requirements for energy to be conserved in a collision? What are the requirements for momentum to be conserved in a collision? What are the differences between an elastic and inelastic collision?arrow_forward
- Choose the correct letter We can apply the laws of conservation of linear momentum and angular momentum to the description of the motion of rigid bodies because A. Forces that maintain constant distances between different pairs of point masses are internal forces (i.e. forces of constraint) B. Forces of constraint come in pairs and obey Newton’s third law (i.e. they are equal and act along the same line of action) C. In any displacement the relative distances and the orientations of different particles remain the same with respect to each other D. No network is done by the internal forces or the forces of constraint E. All of the above are correct F. None of the above is correctarrow_forwardplease answer this question in 20 minutes. i will upvotearrow_forwardB. Exercises for Skill Subjects/Analysis Questions Using HOTS for Content Subjects Exercise 1: Calculate me! A 100-gram ball m1, and a 200-gram ball m2, connected by a rod with a length of 60 cm. the mass of the rod is ignored. The axis or rotation is located at the center of the rod. What is the momentum of inertia of the balls about the axis rotation? Illustration: A Ace m1 m2 Barrow_forward
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SEE MORE QUESTIONS
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Recommended textbooks for you
- Glencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-Hill
Glencoe Physics: Principles and Problems, Student...
Physics
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Glencoe/McGraw-Hill