find the work done in changing the velocity of a body of mass 500 gram from 10 metre per second to 20 metre per second
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Answer:
75j
Explanation:
work done W = F.s = m.as
v² = u² + 2as , 400 = 100 +2as , as = 150m²/s²
W = 0.5 kg x 150m²/s² = 75 kgm/s².m = 75 Nm = 75 j
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