
In an inelastic collision,


Important Questions on Impulse and Collision
A ball rolls with a velocity on a smooth horizontal floor. If coefficient of restitution, find the average speed of the ball for to and fro journey.

A ball is projected from the ground at some angle with horizontal. Coefficient of restitution between the ball and the ground is Let and be the ratio of times of flight, horizontal range and maximum height in two successive paths. Find and in terms of

is a fixed point a height above a perfectly inelastic smooth horizontal plane. A light inextensible string of length has one end attached to and other to a heavy particle. The particle is held at the level of with string just taut and released from rest. Find the height of the particle above the plane when it is next instantaneously at rest.


A heavy ball of mass moving with a velocity collides elastically head-on with a cradle of three identical balls each of mass as shown in figure. Determine the velocity of each ball after collision.

In figure, there are identical spheres of mass suspended with wires of equal length. The spheres are almost in contact with each other. Sphere is pulled aside and released. If sphere strikes sphere with velocity find an expression for velocity of the sphere immediately after being struck by the one adjacent to it. The coefficient of restitution for all the impacts is


