Physics, 15.01.2021 22:20 MayFlowers
28. A sphere with the same mass and radius as the original cylinder, but a smaller rotational inertia, is released from rest from the top of the ramp. K. and K. are the sphere's and the cylinder's total kinetic energy at the
bottom of the ramp, respectively. How do K and K, compare, and why?
(A) K. c, because the sphere will gain less rotational kinetic energy.
(B) Kc, because the sphere has a greater acceleration and therefore has less time to gain kinetic energy.
(C) Kc, because both objects accelerate at the same rate.
(D) Kc, because the gravitational force does equal work on each object as it rolls down the ramp.
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28. A sphere with the same mass and radius as the original cylinder, but a smaller rotational inerti...
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