13. Rotational Inertia & Energy
Conservation of Energy in Rolling Motion
Multiple Choice
Multiple ChoiceYou may remember that the lowest speed that an object may have at the top of a loop-the-loop of radius R, so that it completes the loop without falling, is √gR . Determine the lowest speed that a solid sphere must have at the bottom of a loop-the-loop, so that it reaches the top with enough speed to complete the loop. Assume the sphere rolls without slipping.
A
√(5gR)
B
√(13gR/5)
C
√(27gR/7)
D
√(10gR)
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