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first find the velocity after 2 seconds by using the laws of motion's first equation
v=u-gt
v=20-2*10
v=0
thus after 2 seconds the body will have no kinetic energy as the velocity has become 0
v=u-gt
v=20-2*10
v=0
thus after 2 seconds the body will have no kinetic energy as the velocity has become 0
imran78632:
thanks
your welcome
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