Two spheres of equal mass and radius arerolling across the floor with the same speed. Sphere 1 is a uniformsolid; sphere 2 is hollow. Is the work required to stop sphere 1greater than, less than, or equal to the work required to stop sphere2? (b) Choose the best explanation from among the following:I. Sphere 2 has the greater moment of inertia and hence thegreater rotational kinetic energy.II. The spheres have equal mass and speed; therefore, they havethe same kinetic energy.III. The hollow sphere has less kinetic energy.
Two spheres of equal mass and radius arerolling across the floor with the same speed. Sphere 1 is a uniformsolid; sphere 2 is hollow. Is the work required to stop sphere 1greater than, less than, or equal to the work required to stop sphere2? (b) Choose the best explanation from among the following:I. Sphere 2 has the greater moment of inertia and hence thegreater rotational kinetic energy.II. The spheres have equal mass and speed; therefore, they havethe same kinetic energy.III. The hollow sphere has less kinetic energy.
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Question
Two spheres of equal mass and radius are
rolling across the floor with the same speed. Sphere 1 is a uniform
solid; sphere 2 is hollow. Is the work required to stop sphere 1
greater than, less than, or equal to the work required to stop sphere
2? (b) Choose the best explanation from among the following:
I. Sphere 2 has the greater moment of inertia and hence the
greater rotational kinetic energy.
II. The spheres have equal mass and speed; therefore, they have
the same kinetic energy.
III. The hollow sphere has less kinetic energy.
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