a man drops a 10kg rock from the top of a 5 m big ladder what is the kinetic energy when it reaches the ground what is its speed when it just hits the ground
santosh9760:
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pe at top is given by mgh.
this is converted to ke at the ground level.
mgh= 10*10*5=500 j
500 j is the ke which it reached the ground... using 1/2 mv^2=500 u can find the value of v
this is converted to ke at the ground level.
mgh= 10*10*5=500 j
500 j is the ke which it reached the ground... using 1/2 mv^2=500 u can find the value of v
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