A ball is dropped onto a horizontal floor. It reaches a height of 144cm on the first bounce and 81cm on the second bounce,The coefficient of restitution is what?

A ball is dropped from a height of 20 m in the floor and rebounds to 1.25 m after second collision, then coefficient of restitution e is

A ball is dropped on a horizontal surface from height h. If it rebounds upto height (h)/(2) after first collision then coefficient of restitution between ball and surface is

A ball is dropped onto a floor from a height of 10 m . If 20% of its initial energy is lost,then the height of bounce is

A 1.0 kg ball drops vertically into a floor from a height of 25 cm . It rebounds to a height of 4 cm. The coefficient of restitution for the collision is

A ball is dropped on to a horizontal plate from a height h = 9 m above it. If the coefficient of restitution is e=1/2, the total distance travelled before the ball comes to rest is

A metal ball falls from a height of 1m on to a steel plate and jumps upto a height of 81 cm. The coefficient of restitution of the ball and steel plate is

A small ball is projected from point P towards a vertical wall as shown in Fig. It hits the wall when its velocity is horizontal. Ball reaches point P after one bounce on the floor. The coefficient of restitution assuming it to be same for two collisions is n//2 . All surfaces are smooth. Find the value of n .

A girl throws the ball with horizontal velocity 2m//s at the moment t=0 . The ball bounces once on the smooth floor and then lands into cup C . The coefficient of restitution for the collision is 0.8 . Select the correct alternative (g=10m//s^(2))

A rubber ball is dropped from a height of 5 m on a plane. If bounces back to a height of 1.8 m. Find the coefficient of the resitution for the collision.

A ball (initially at rest) falls vertically for 2 s and hits a smooth plane inclined at 30^(@) to the horizontal. The coefficient of restitution is (5)/(8) . The distance along the plane between the first and second impact of the ball is