question_answer

A steel ball hits a horizontal smooth floor obliquely and rebounds inelastically Then

A)  The kinetic energy of the ball just before hitting the floor equals the additional potential energy of the ball at its maximum height after rebound.

B)  Total linear momentum is conserved.       

C)  The angle of rebound with the vertical is greater than the angle of incidence.

D)  The angle of rebound with the vertical is less than the angle of incidence.