Can i get help with these problems The forearm in the figure(Figure 1) accelerates a 3.9 kg ball at 6.1m/s2 by means of the triceps muscle, as shown.Figure1 of 131 cm2.5 cmAxis of rotation(at elbow)Tricepsmuscle Part ACalculate the torque needed. Ignore the mass of the arm.Express your answer using two significant figures.ΑΣΦ画m · NSubmitRequest AnswerPart BCalculate the force that must be exerted by the triceps muscle.Express your answer using two significant figures.F =NSubmitRequest Answer

Given- mass of ball , mb= 3.9 kg acceleration of ball , a = 6.1 m/s2 perpendicular distance of ball…

Answered: The forearm in the figure(Figure 1)…

The forearm in the figure(Figure 1) accelerates a 3.9 kg ball at 6.1 m/s? by means of the triceps muscle, as shown. Figure 1 of 1 31 cm Axis of rotation (at elbow) 2.5 cm Triceps muscle

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter10: Rotational Motion And Angular Momentum

Section: Chapter Questions

Problem 47PE: Repeat Example 10.15 in which the stick is free to have translational motion as well as rotational...

See similar textbooks

Related questions

Q: A rectangular plate swings from arms of equal length as shown. What is the magnitude of the angular…

A: Since the plate swings by the arms and arms have equal length, the plate will be in symmetry.

Q: The spinning top precesses at 1 revolution per second. The top has a mass of 400 grams and the…

Q: The angular position of a rod varies as 23.7t2 radians from time t = 0. The rod has two beads on it…

A: "Since you have posted a question with multiple sub-parts, as per strict guidelines to us we will…

Q: Three external forces, all in the plane of the page, are acting on a uniform, 0.60-kg, 30-cm-long,…

A: Given that: Mass of rod, m=0.60 kgLength of the rod, L=30 cm=0.30 mForces: F1=4.0 N, F2=2.0 N,…

Q: A wooden plank with a mass m = 4kg and a length L = 0.75 m is loosely nailed to a vertical wall. The…

A: The torque acting on an object about a point from the pivot point is defined as the product of the…

Q: A 3.00 kg rock has a horizontal velocity of magnitude 12.0 m/s when it is at point P in the figure…

A: Write the expression for magnitude of angular momentum.

Q: Below shows the pedal system of a bicycle. If a cyclist applies force on the pedal (position of RA)…

A: We assume that the force is applied on the pedal and the bicycle + rider system is accelerating at…

Q: The blades of a wind turbine are 30 m in length and rotate at a maximum rotation rate of 20 rev/min.…

A: Given,

Q: Look at the diagram below. The weight of the grapefruit is 15 N. Calculate the moment of this…

Q: 5.9. A person who weighs 650 N rides a bicycle. The pedals move in a circle of radius 40 cm. If the…

Q: We revisit the ball (mass of 100 g) that was attached at the end of the string. The distance between…

Q: The angular position of a rotating object as a function of time is given below: θ(t) = 2t^3 +…

Q: The triceps muscle in the back of the upper arm extends the forearm. This muscle in a professional…

Q: Ib-ft slug-ft rad/s 13. A record player has a tumtable which is a flat plate of radius 12cm and mass…

A: The formula we will use is: Torque=moment of inertia(I) x angular accelerationα.

Q: A potter's wheel with a moment of inertia of 0.1 kg-m² is spinning freely at 35.17 rpm. The potter…

A: in this question we determine mass in kg.

Q: A wheel rotates with constant 1 rad/s? acceleration. At the end of a certain 5s period (not between…

A: Given Angular acceleration = 1 rad/s2 Time t = 5 sec Final angular velocity = 10 rad /s

Q: the moment of the inertial of the masses/ ignore mass of rod.

A: Given data: The mass of sphere is: m1 = 200 g = 0.2 kg The mass of hand with forearm is: m2 = 100 g…

Q: Three children are riding on the edge of a merry-goround that is 100 kg, has a 1.60-m radius, and is…

A: Given data: Mass of the marry – go – round, M=100 kg Radius, r=1.60 m Initial angular velocity,…

Q: 8- The rotational kinetic energy of a disk of radius R=5 cm and mass m-1Kg rotating about an axis…

A: Given The radius of the disk is R=5 cm=5×10-2 m. The mass of the disk is m=1 kg. The angular…

Q: A child in a barbershop spun on a stool. If the child turns clockwise through 8.0π rad during an 8.0…

A: Given value--- angle = (8 pi) rad. time = 8 second . We have to find--- average angular velocity?

Q: Three children are riding on the edge of a merry-go-round that is 182 kg, has a 1.60 m radius, and…

A: The total angular momentum of the system must be conserved. It is given as

Q: If the person’s speed doubles and all else remains the same, what will be the person’s angular…

Q: Below shows the pedal system of a bicycle. If a cyclist applies force on the pedal (position of RA)…

A: Given: Angular acceleration, a = 3.7 rad/s2 Radius of the wheel, r = RD - RC = 33cm - 4cm = 29 cm =…

Q: A rotating wheel requires t=14.3s to rotate through 106 revolutions. Its angular velocity at the end…

Q: ne distante i aveleu vy the Dike.[14.9 M] Given that the bicycles' wheels are 76 cm in diameter. 11)…

A: Step 1The given quantities are

Q: The radius of a flywheel is 0.24 m. If the angular speed of the wheel is 3,408 rpm. Calculate the…

A: Given, the radius of flywheel , r = 0.24m The angular speed ,ω= 3408 rpm = 3408 revolution per…

Q: Exercise 9.13 A turntable rotates with a constant 2.25 rad/s² angular acceleration. After 3.50 sit…

Q: What is the angular momentum of a 0.315 kg ball rotating on the end of a thin string in a circle of…

Q: F2 30.0 JF1 K 2.00 m *3.00m->l Find the net (or total) torque about point O for the two forces as in…

A: The free-body diagram of the system is shown below.

Q: The right-angle bar rotates clockwise with an angular velocity which is decreasing at the rate of 4…

A: From right hand rule, z axis point out of the screen angular velocity,ω=-2 rads kangular…

Q: A spinning wheel that initially rotates at 6.3 rad/sec is braked uniformly to a stop in 6.3 second.…

Q: Three children are riding on the edge of a merry-go-round that is 162 kg, has a 1.60 m radius, and…

Q: Inthe "Rotational Motion experiment (shown in the figure below), when we increase the hanging mass…

A: When we increase the mass then the tension in the rope increases. now tension = moment of inertia *…

Q: You reach your straight outstretched arm, 0.78 m from your shoulder, to grab the cornbread dish from…

A: So the torque exerted on the arm at this position is 21.78 N.m.

Q: The triceps muscle in the back of the upper arm extends the forearm. This muscle in a professional…

A: Given Force exerted by muscle in a professional boxer = 2.00×103 N Length of effective perpendicular…

Q: =) A cylindrical space-ship has a total mass of 3000 kg and a diameter of 3.0 m. The space- ship is…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Consider the system of two blocks shown in (Figure 1). There is no friction between block A and the…

A: Given Data Mass of block B, mB=5 kg The radius of pulley r=0.200 m Moment of inertia of the pulley…

Q: A disc with 0.6 kg m^2 moment of inertia is free to rotate about its center. Two forces F1=5N and…

A: The expression for the required angular acceleration,

Q: A uniform, 8.40-kg spherical shell 50.0 cm in diameter has four small 2.00-kg masses attached to its…

A: The Moment of Inertia of a thin spherical shell of mass m and radius R is given by Is = 23MR2 Here…

Q: A windmill is initially turning at a rate of 1 revolution per 4.8 seconds. The wind strengthens,…

A: initial angular velocity = 1 revolution per 4.8 sec angular acceleration = 0.2 rad/s2time = 8 sec

Q: Big Ben, the Parliament tower clock in London, has hour and minute hands with lengths of 2.70 m and…

Q: Below shows the pedal system of a bicycle. If a cyclist applies force on the pedal (position of RA)…

A: Given: angular acceleration of point RA is α = 4 rad/s2 time for the applied…

Question

Can i get help with these problems

The forearm in the figure(Figure 1) accelerates a 3.9 kg ball at 6.1
m/s2 by means of the triceps muscle, as shown.
Figure
1 of 1
31 cm
2.5 cm
Axis of rotation
(at elbow)
Triceps
muscle

Part A
Calculate the torque needed. Ignore the mass of the arm.
Express your answer using two significant figures.
ΑΣΦ
画
m · N
Submit
Request Answer
Part B
Calculate the force that must be exerted by the triceps muscle.
Express your answer using two significant figures.
F =
N
Submit
Request Answer

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1- Analyzing the problem

VIEW

Step 2-Determination of torque

VIEW

Step 3- Determination of force applied by triceps muscle

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

While driving his motorcycle at highway speed, a physics student notices that pulling back lightly on the right handlebar tips the cycle to the left and produces a left turn. Explain why this happens.
An ice skater is preparing for a jump with turns and has his arms extended. His moment of inertia is 1.8kgm2 while his arms are extended, and he is spinning at 0.5 rev/s. If he launches himself into the air at 9.0 m/s at an angle of 45 with respect to the ice, how many revolutions can he execute while airborne if his moment of inertia in the air is 0.5kgm2 ?
When the merry-go-round of Quick Quiz 7.4 is rotating at a constant angular speed, Andreas tangential speed is (a) twice Chucks (b) the same as Chucks (c) half of Chucks (d) impossible to determine.
Suppose a child walks from the outer edge of a rotating merry-go-round to the inside. Does the angular velocity of the merry-go-round increase, decrease, or remain the same? Explain your answer. Assume the merry-go-round is spinning without friction.
Andrea and Chuck are riding on a merry-go-round. Andrea rides on a horse at the outer rim of the circular platform, twice as far from the center of the circular platform as Chuck, who rides on an inner horse. When the merry-go-round is rotating at a constant angular speed, Andreas angular speed is (a) twice Chucks (b) the same as Chucks (c) half of Chucks (d) impossible to determine.
Angular momentum is conserved in the absence of which of the following? (3.7) (a) inertia (b) gravity (c) a net torque (d) linear momentum
In 2015, in Warsaw, Poland, Olivia Oliver of Nova Scotia broke the world record for being the fastest spinner on ice skates. She achieved a record 342 rev/min, beating the existing Guinness World Record by 34 rotations. If an ice skater extends her aims at that rotation rate, what would be her new rotation rate? Assume she can be approximated by a 45-kg rod that is 1.7 m tall with a radius of 15 cm in the record spin. With her aims stretched take the approximation of a rod of length 130 cm with 10 of her body mass aligned perpendicular to the spin axis. Neglect frictional forces.
In lacrosse, a ball is thrown from a net on the end of a stick by rotating the stick and forearm about the elbow. If the angular velocity of the ball about the elbow joint is 30.0 rad/s and the ball is 1.30 m from the elbow joint, what is the velocity of the ball?
Suppose the change in angular position for each of the pairs of values in Quick Quiz 7.1 occurred in 1 s. Which choice represents the lowest average angular velocity?
Haileys comet moves about the Sun in an elliptical orbit, with its closest approach to the Sun being 0.59 AU and its greatest distance being 35 AU (1 AU is the Earth-Sun distance). If the comets speed at closest approach is 54 km/s, what is its speed when it is farthest from the Sun? You may neglect any change in the comets mass and assume that its angular momentum about the Sun is conserved.
Competitive divers pull their limbs in and curl up their bodies when they do flips. Just before entering the water, they fully extend their limbs to enter straight down. Explain the effect of both actions on their angular velocities. Also explain the effect on their angular momenta.
Gyroscopes used in guidance systems to indicate directions must have an angular momentum that does not change in direction. Yet they are often subjected to large and accelerations. How can the direction of their angular momentum be constant when they are accelerated?