WAEC - Physics (2015 - No. 14)

A body of mass 1000kg is released from a height of 10m above the ground. Determine its kinetic energy just before it strikes the ground .[g = 10ms-2]
10J
103J
104J
105J

Explanation

Ke = mgh

Ke = Pe

\(\frac{1}{2}\)MV2 = mgh

Ke = 1000 x 10 x 10

Ke = 100000J

Ke = 105J

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