calculate the kinetic energy of solid sphere of mass 10 kg and radius 20 cm rolling with a constant speed of 1.2 m/s along a horizontal surface
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mass x speed=kinetic energy
10x1.2=12joules
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Answer:
28 / 100 J
Explanation:
KE total = KE rotational + KE translational
Here
KE rotational = 1/2 (Iω²)
KE translational = 1/2 (mv²)
KE total = 1/2 (2/5 MR²) (V/R)² + 1/2 MV²
= 7/10 MV²
= 28 / 100 J
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