An object of mass 50kg is released from a height of 2m.Fi...
An object of mass 50kg is released from a height of 2m.Find the kinetic energy just before it strikes the ground
250J
1000J
10 000J
100 000J
Correct answer is B
P.E = K.E = mgh
= 50 x 10 x 2 = 1000J
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