An object of mass 20kg is released from a heigh... - JAMB Physics 2014 Question
An object of mass 20kg is released from a height of 10m above the ground level. The kinetic energy of the object just before it hits the ground is
A
200J
B
4000J
C
2000J
D
500J
correct option: c
Kinetic Energy = mgh
= 20 x 10 x 10 J
= 2000J
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