Define elastic collision. Define inelastic collision.

In figure, determine the type of the collision The masses of the blocks, and the velocities before and after the collision are given. The collision is

A ball is dropped from a height $h$. If the coefficient of restitution be $e$, then to what height will it rise after jumping twice from the ground

A particle of mass $m$ is moving with speed $2\, v$ collides with a mass $2\,m$ moving with speed $v$ in the same direction. After collision, the first mass is stopped completely while the second one splits into two particles each of mass $m$, which move at angle $45^o$ with respect to the original direction. The speed of each of the moving particle will be

In a one-dimensional collision between two particles, their relative velocity is ${\vec v_1}$ before the collision and ${\vec v_2}$ after the collision

A ball falls from a height of $5\,m$ and strikes the roof of a lift. If at the time of collision, lift is moving in the upward direction with a velocity of $1\,m/s$, then the velocity with which the ball rebounds after collision will be $-(e = 1)$