A ball of mass 10 kg hits a smooth horizontal surface with a

Last updated: 6/6/2023

A ball of mass 10 kg hits a smooth horizontal surface with a speed of 10 2 m s at an angle of 45 as shown in the figure The coefficient of restitution between the ball and the surface is 0 5 and the ball remains in contact with the surface for 0 1 sec F is the instantaneous force exerted by the surface on ball at any time t during the collision A The speed with which the ball rebounds is 125 m s B During collision F may be less than or equal to 1800 N C During collision F may be greater than or equal to 100 N D The average force exerted by ground during collision is 1600 N 10 kg 10 2 m s 45 e 0 5