Constants | Periodic Table A billiard ball at rest is struck (bold arrow in the figure (Figure 1)) by a cue with an average force of 3.10 N lasting for 0.060 s. The cue contacts the ball's surface so that the lever arm is half the radius of the ball, as shown. Part A f the cue ball has a mass of 200 g and a radius of 2.50 cm, determine the angular speed of the ball immediately after the blow. (Neglect friction.) Express your answer using two significant figures. Figure < 1 of 1 rad/s 1.25 cm Submit Request Answer Provide Feedback Next >

Constants | Periodic Table A billiard ball at rest is struck (bold arrow in the figure (Figure 1)) by a cue with an average force of 3.10 N lasting for 0.060 s. The cue contacts the ball's surface so that the lever arm is half the radius of the ball, as shown. Part A f the cue ball has a mass of 200 g and a radius of 2.50 cm, determine the angular speed of the ball immediately after the blow. (Neglect friction.) Express your answer using two significant figures. Figure < 1 of 1 rad/s 1.25 cm Submit Request Answer Provide Feedback Next >

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 4PE: Unreasonable Results You are told that a basketball player spins the ball with an angular...

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You are working during your summer break as an amusement park ride operator. The ride you are controlling consists of a large vertical cylinder that spins about its axis fast enough that any person inside is held up against the wall when the floor drops away (Fig. P6.7). The coefficient of static friction between a person of mass m and the wall is s, and the radius of the cylinder is R. You are rotating the ride with an angular speed suggested by your supervisor. (a) Suppose a very heavy person enters the ride. Do you need to increase the angular speed so that this person will not slide down the wall? (b) Suppose someone enters the ride wearing a very slippery satin workout outfit. In this case, do you need to increase the angular speed so that this person will not slide down the wall? Figure P6.7
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Unreasonable Results You are told that a basketball player spins the ball with an angular acceleration of 100 rad/s2. (a) What is the ball's final angular velocity if the ball stairs from rest and the acceleration lasts 2.00 s? (b) What is unreasonable about the result? (c) Which premises are unreasonable or inconsistent?
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