A stone of mass 0.5kg is dropped from a height of 12m. Calculate its maximum...
PHYSICS
WAEC 2009
A stone of mass 0.5kg is dropped from a height of 12m. Calculate its maximum kinetic energy. [g = 10ms-1]
- A. 3.0J
- B. 6.0J
- C. 30.0j
- D. 60.0J
Correct Answer: D. 60.0J
Explanation
K.E = P.E = mgh
= 0.5 x 10 x 12 = 60J
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