A small mass m on a string is rotating without friction in a circle. The string is shortened by pulling it through the axis of rotation without any external torque, Fig. 8–39. What happens to the angular velocity of the object? (a) It increases. (b) It decreases. (c) It remains the same. FIGURE 8–39 MisConceptual Questions 10 and 11.

A small mass m on a string is rotating without friction in a circle. The string is shortened by pulling it through the axis of rotation without any external torque, Fig. 8–39. What happens to the angular velocity of the object? (a) It increases. (b) It decreases. (c) It remains the same. FIGURE 8–39 MisConceptual Questions 10 and 11.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter8: Rotational Equilibrium And Dynamics

Section8.6: Angular Momentum

Problem 8.6QQ: If global warming continues, its likely that some ice from the polar ice caps of the Earth will melt...

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Question

A small mass m on a string is rotating without friction in a
circle. The string is shortened by pulling it through the axis
of rotation without any external torque, Fig. 8–39. What
happens to the angular velocity of the object?
(a) It increases.
(b) It decreases.
(c) It remains the same.
FIGURE 8–39
MisConceptual
Questions 10 and 11.

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