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If a mass of 4 kg is dropped from a height of 100 m, what will be its velocity when it reaches the ground |
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Answer» body is throw or DROPPED from some height then we take initial VELOCITY i. e u=0 because when the body is DROPPING the body is at rest. Now, we APPLY the formula v^2-u^2=2as But a is replaced by g and s is replaced by h.. v^2-u^2=2ghv^2=0+2*10*100v^2=2000v=√2000v=44.6m/s.. |
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