A small ball of mass `m` is dropped from an aeroplane moving at `50 m` height above the ground with a speed of `25 sqrt(2) "metre"//sec` if half of the mechanical energy of ball with respect to ground is lost as a thermal energy due to air friction. The change in the temperature of the ball as it lands on the ground is. specific heat capacity of ball is `56.25 J//kg`. `(g = 10 m//sec^(2))`