A football of mass 200 g moving towards a player with a velocity of 20m`cdot s^(-2)` is kicked back by him. If the ball after being kicked moves with a velocity of 30 m`cdot s^(-1)` at an angle of `45^(@)` with the horizontal, then find (i) the net impuse of the force and (ii) the average force acting on the football. (Given , time of contact between football and the foot of the player is 0.1 s )

Answer

9.27 N`cdot` s ; 92.7 N