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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
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Correct Answer: Option D
Explanation
K.E = P.E = mgh

= 0.5 x 10 x 12 = 60J
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