A solid sphere of mass 2.5 kg and radius 0.12 m is at rest at the top of a ramp inclined 15 . It rolls to the bottom without slipping. The upper end of the ramp is 1.2 m higher than the lower end. Find the sphere's total kinetic energy when it reaches the bottom.
A) 70 J
B) 47 J
C) 29 J
D) 8.8 J
Correct Answer:
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