A Super Ball (an extremely elastic ball with a high coefficient of restitution) is dropped on the ground from a height of 1.35 mm . The elastic nature of the ball means it bounces to 0.90 of its original height. The mass of the ball is 24 g .
a)
When the ball hits the ground, the floor exerts an impulse on it. What are the magnitude and direction of this impulse? (in kgm/s)
b)
What is the direction of the impulse?
(upwards or downwards)
