A slingshot is being whirled around in uniform circular motion. Which of the following statements best describes the forces and torques acting on the system? O The net torque is nonzero, but the net force is zero. O The net torque and the net force are both equal to zero. O The net torque is zero, but the net force is nonzero. O The net torque and the net force are both nonzero constants. Question 2 A solid sphere (Icom =MR), a disk (Icom =MR²) and a hoop (Icom = MR) having the same mass M and radius R start from

A slingshot is being whirled around in uniform circular motion. Which of the following statements best describes the forces and torques acting on the system? O The net torque is nonzero, but the net force is zero. O The net torque and the net force are both equal to zero. O The net torque is zero, but the net force is nonzero. O The net torque and the net force are both nonzero constants. Question 2 A solid sphere (Icom =MR), a disk (Icom =MR²) and a hoop (Icom = MR) having the same mass M and radius R start from

Physics for Scientists and Engineers with Modern Physics

10th Edition

ISBN:9781337553292

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter11: Angular Momentum

Section: Chapter Questions

Problem 7P: A particle is located at a point described by the position vector r=(4.00i+6.00j)m, and a force...

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Suppose when Earth was created, it was not rotating. However, after the application of a uniform torque after 6 days, it was rotating at 1 rev/day. (a) What was the angular acceleration during the 6 days? (b) What torque was applied to Earth during this period? (c) What force tangent to Earth at its equator would produce this torque?
A flywheel (l=50kgm2) starting from rest acquires an angular velocity of 200.0 rad/s while subject to a constant torque from a motor for 5 s. (a) What is the angular acceleration of the flywhell? (b) What is the magnitude of the torque?
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Shown below is a small particle of mass 20 g that is moving at a speed of 10.0 m/s when it collides and sticks to the edge of a uniform solid cylinder. The cylinder is free to rotate about its axis through its center and is perpendicular to the page. The cylinder has a mass of 0.5 kg and a radius of 10 cm, and is initially at rest. (a) What is the angular velocity of the system after the collision? (b) How much kinetic energy is lost in the collision?
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