A metal ball of mass 5 kg falls from a height of 490 m. How much time will it take to reach the ground ?

A body is allowed to fall from a height of 20 metres from the ground. How much time will take to reach the ground? What will be its velocity just a moment before hitting the ground?

A ball of mass 500 g falls from a height of 4 m Find the K.E. of the ball when it reaches the ground. (Take g =9.8 m/s^2 )

A body of mass 5kg falls from a height of 5m. How much energy does it possess at any instant?

A ball of mass 200 g falls from a height of 5 m. What will be its kinetic energy when it just reaches the ground ? (g=9.8ms^(-2))

A steel ball of mass 0.1 kg falls freely from a height of 10 m and bounces to a height of 5.4 m from the ground. If the dissipated energy in this process is absorbed by the ball, the rise in its temperature is (specific heat of steel =460 K//kg^(@)//C,g=10 m//s^(2) )