QUESTION 3 While thinking about torques on a balanced a seesaw with two kids sitting at its ends, a student draws the following sketch with equal length arrows representing forces on the seesaw: What is wrong with the sketch and how can it be fixed?

QUESTION 3 While thinking about torques on a balanced a seesaw with two kids sitting at its ends, a student draws the following sketch with equal length arrows representing forces on the seesaw: What is wrong with the sketch and how can it be fixed?

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter8: Rotational Motion

Section8.2: Rotational Dynamics

Problem 16PP

See similar textbooks

Related questions

Q: Calculate the gravitational field strength on a planet with a diameter of 12304.8 km and the escape…

Q: What is the magnetic field due to an inductor of length 10 cm that has 300 turns if 0.25 A of…

A: B = magnetic field due a inductor. B= uo n i Where n = number of turns i = current L= self…

Q: What is the energy density inside of a 1 m long coil with 2000 turns that carries 25 A?

A: Write the given values with the suitable variables. L=1 mN=2000I=25 A Here, L is the length, N is…

Q: The electric field at a distance of 1.0 m from a charged sphere is 100 N/C. At what distance from…

Q: Using the equation ??2 =???2 +2??(?−??) where a car is moving at an initial speed of 22 m/s slams on…

Q: A dinosaur standing on its hind limbs is shown. Determine the force acting at C (in kN) assuming…

Q: If you run half a lap around a circle of radius 50 m the magnitude of your displacement is

Q: The resistances in Figure (a) and Figure (b) are all 7.8 Q, and the batteries are ideal 37 V…

Q: Two long straight current-carrying wires are lined up parallel to one another at a distance 'd'.…

A: Given that, Current through first wire, I1 = 4 A Current through second wire, I2 = 2 A The total…

Q: Two identical positive charges and a negative charge are fixed at the vertices of an equilateral…

Q: Two long straight current-carrying wires are lined up parallel to one another at a distance dd.…

Q: In a given fluid, positive ions, each with 2 excess protons, move to the right at a steady rate of…

Q: In the figure, two circular arcs have radii a = 14.8 cm and b = 10.2 cm, subtend angle e = 79.0°,…

Q: 1. The velocity v of a falling parachute is given by: v = gm (1- -) Where. g = 9.8 m/s² a. For a…

A: Velocity of a falling parachute is v=gmc(1-e-(c/m)t) Using false position method, In Latin, it is…

Q: Based on the circuit drawn below: (Please use your VIRP chart) R1 = 15 2 V = 120 V R2 20 2

Q: The current through the starter motor of a car is 210 A. If the battery maintains 12 V across the…

A: Given data: Current (I) = 210 A Battery voltage (V) = 12 V Time (t) = 10 s Required: Power (P) and…

Q: pur solution on a clean sheet of paper. 2. If a circuit has a voltage of 50 V and a current of 3. A…

A: Voltage of circuit = 50 V Current flowing in circuit = 9 A

Q: A 2.5 kg cast iron pot contains 1.8 L of water at 20°C. How many minutes will it take to boil half…

A: mass of pot made of cast iron (m) = 2.5 kg volume of water = 1.8L mass of water = 1.8 kg (as density…

Q: 2) The largest member of the string family (in a typical orchestra) is the double bass, which…

Q: • The equations are provided on the last page. 1. Samuel walked up 60 steps from the first floor to…

A: here no external force is acting on the man except gravitational force. W = his reaction force on…

Q: A vehicle with headlights separated by 1.98 m approaches an observer holding an infrared detector…

A: Given Separation between the headlights is d=1.98 m Wavelength of the light is λ=885 nm=885×10-9 m…

Q: 3. While playing basketball in PE class, Logan lost his balance after making a lay-up and colliding…

Q: A wire that is 1.50 m long at 25°C is found to increase in length by 1.90 cm when warmed to 420°C.…

Q: When 400-nm red light is incident on a vertically oriented diffraction grating that is 3.2 cm wide,…

Q: What is the frequency heard by a person driving at 76 mi/h directly towards toward a factory whistle…

A: Given: The speed with which the person (the observer) is driving directly towards the factory: vo =…

Q: In the arrangement shown in the figure below, an object of mass m = 4.0 kg hangs from a cord around…

Q: A mass ?m is suspended from a massless spring of natural length 90 cm with the spring constant…

A: The motion of a mass attached with a spring executes simple harmonic motion when the spring is made…

Q: Two long straight current-carrying wires are lined up parallel to one another in vacuum at a…

A: We have two wires 1 and 2 that are separated by a distance d carrying currents I1 and I2 in the same…

Q: A stationary square coil of area 0.1 m² is brought into the magnetic field 4 T with its plane…

Q: What is the moment of inertia of a solid sphere of mass M and radius R rotating about an axis that…

A: Moment of inertia of sphere about an axis:

Q: A typical flashlight bulb is rated at 7.5 W. If the lightbulb drops 3 V, a) Draw a sketch of the…

Q: The gravitational force exerted on a solid object is 5.50 N as measured when the object is suspended…

A: Weight of object (w)= 5.50 N Apparent weight (wapp) = 3.44 N

Q: An aluminum rod is 12 cm long at 10°C. At the same condition, an iron rod is 12.02 cm in length. At…

Q: In an interference experiment using a monochromatic source emitting light of wavelength λ=600 nm,…

Q: ttom on the wall using a wire shown in the figure. The floor is frictionless, while the wall is…

A: Given:- The mass of the uniform ladder is m = 110 kg . The maximum tension on the wire is T = 180…

Q: S- Calculate the aluminum amount to reduce the bandgap of the Si n-type by 100 meV at room…

A: The aluminum amount to redyce tge bandgap is 5.85×10 ^17/cm3

Q: Q/the earth rotates around itself one cycle 2n in 24h,and the radius of the earth is 6000 km. the…

Q: Capacitor - Potential/Field The given figure is a parallel plate capacitor having two parallel Cu…

A: (1) the change in voltage is - 3.783v (2) the amount of charge stored in the capacitor with SiO2…

Q: A uniform string has mass 0.00545 kg and length 0.835 m. (a) Calculate the linear density, or mass…

Q: Consider two pendulums with lengths /1 and /2. Express the ratio of their lengths /1/l2 in terms of…

Q: given ac graph: TABULATE YOUR FINAL ANSWERS. V1 - 52m/s S1 = -91 m (A) 20 t (4)

Q: On the left side of the figure below you see an empty soda can. Where is its center of mass? Is it…

A: When their is no water in soda can then the centre of mass lies exactly at the mid point of the can

Q: rem states that the change in the kinetic energy of an object is equal to what What is called to an…

A: We know the work-energy theorem, According to this theorem. The work done [W] on an object is equal…

Q: A mass m is suspended from a massless spring of natural length 90 cm with the spring constant k = 10…

A: Given k = 10 N/m xo = 90 cm (natural length of spring ) x = 6.8 cm = 0.068 m (extension in spring…

Q: A stationary square coil of area A is brought into the magnetic field B with its plane perpendicular…

Q: Compute the currents in each resistor in the utions on a separate sheet of paper. R, 30 V 11 V R=20…

Q: Directions: Copy the crossword puzzle in your notebook or on a separate sheet of paper. Fill in the…

Q: 11. A diffraction grating has 500 lines per cm. first order maximum for light with a wavelength of…

Q: A stationary square coil of area 0.1 m2 is brought into the magnetic field 9.7 T with its plane…

A: Given Data : The intensity of the magnetic field is given as B = 9.7 T. The number of turns in the…

Q: S5. Two small uniform smooth spheres have masses m and 3m, and speeds 7u and 2u in…

Concept explainers

Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.

Question

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

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

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

A person stands a distance R from a doors hinges and pushes with a force F directed perpendicular to its surface. By what factor does the applied torque change if the persons position and force change to (a) 2R and 2F, (b) 2R and F, (c) R and F/2, (d) R/2 and F/2?
When tightening a bolt, you push perpendicularly on a wrench with a force of 165 N at a distance of 0.140 m from the center of the bolt. (a) How much torque are you exerting in newton meters (relative to the center of the bolt)? (b) Convert this torque to foot pounds.
Two window washers. Bob and Joe, are on a 3.00-m-long, 345-N scaffold supported by two cables attached to its ends. Bob weighs 750 N and stands 1.00 m from the left end, as shown in Figure P8.82. Two meters from the left end is the 500-N washing equipment. Joe is 0.500 m from the right end and weighs 1 000 N. Given that the scaffold is in rotational and translational equilibrium, what are the forces on each cable? Figure P8.82
A wrecking ball is being used to knock down a building. One tall unsupported concrete wall remains standing. If the wrecking ball hits the wall near the top, is the wall more likely to fall over by rotating at its base or by falling straight down? Explain your answer. How is it most likely to fall if it is struck with the same force at its base? Note that this depends on how firmly the wall is attached at its base.
The fishing pole in Figure P10.28 makes an angle of 20.0 with the horizontal. What is the torque exerted by the fish about an axis perpendicular to the page and passing through the anglers hand if the fish pulls on the fishing line with a force F = 100 N at an angle 37.0 below the horizontal? The force is applied at a point 2.00 in from the anglers hands.
A torque of 5.00103Nm is required to raise a drawbridge (see the following figure). What is the tension necessary to produce this torque? Would it be easier to raise the drawbridge it the angle were larger or smaller?
Repeat the seesaw problem in Example 9.1 with the center of mass of the seesaw 0.160 m to the left of the pivot (on the side of the lighter child) and assuming a mass of 12.0 kg for the seesaw. The other data given in the example remain unchanged. Explicitly show how you follow the steps in the Problem-Solving Strategy for static equilibrium.
Two window washers. Bob and Joe, are on a 3.00-m-long, 345-N scaffold supported by two cables attached to its ends. Bob weighs 750 N and stands 1.00 m from the left end, as shown in Figure P8.82. Two meters from the left end is the 500-N washing equipment. Joe is 0.500 m from the right end and weighs 1 000 N. Given that the scaffold is in rotational and translational equilibrium, what are the forces on each cable? Figure P8.82
Torque and the Two Conditions for Equilibrium 17. The arm in Figure P8.17 weighs 41.5 N. The force of gravity acting on the arm acts through point A. Determine the magnitudes of the tension force Ft, in the deltoid muscle and the force Fs exerted by the shoulder on the humerus (upper-arm bone) to hold the arm in the position shown. Figure P8.17
Two forces F1 and F2 act along the two sides of an equilateral triangle as shown in Figure P11.5. Point O is the intersection of the altitudes of the triangle. (a) Find the magnitude of a third force F3 to be applied at B and along BC that will make the total torque zero about the point O. (b) What If? Will the total torque change if F3 is applied not at B but at any other point along BC? Figure P11.5
(a) Give an example in which the net force acting on an object is zero and yet the net torque is nonzero, (h) (five an example in which the net torque acting on an object is zero and yet the net force is nonzero.
Even when the head is held erect, as in Figure 9.41, its center of mass is not directly over the principal point of support (the atlanto-occipital joint). The muscles at the back of the neck should therefore exert a force to keep the head erect. That is why your head falls forward when you fall asleep in the class. (a) Calculate the force exerted by these muscles using the information in the figure. (b) What is the force exerted by the pivot on the head?