A body of mass 1000kg is released from a height of 10m above the ground....

WAEC 2015

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]

A. 10J
B. 10³J
C. 10⁴J
D. 10⁵J

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Correct Answer: Option D

Explanation

Ke = mgh

Ke = Pe

\(\frac{1}{2}\)MV² = mgh

Ke = 1000 x 10 x 10

Ke = 100000J

Ke = 10⁵J

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A body of mass 1000kg is released from a height of 10m above the ground....

Correct Answer: Option D

Explanation

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