A ball of mass $5\text{kg}$ moving at speed $2\text{m/s}$ makes a head on collision with an identical ball at rest. The velocities of the balls after the perfectly elastic collision between them are respectively:-

Q. A ball of mass $5\text{kg}$ moving at speed $2\text{m/s}$ makes a head on collision with an identical ball at rest. The velocities of the balls after the perfectly elastic collision between them are respectively:-

Q. Two identical balls each of mass 4 kg are moving towards each other with speeds 2 m/s and 3 m/s respectively, they undergo head on perfectly elastic collision. the impulse imparted by one ball on other is:

Q. Ball 1 of mass $m$ moving at a speed $v$ makes a head-on collision with an identical ball 2 at rest. The kinetic energy of the balls after the collision is $\frac{3}{4}$th of original. If $e$ is the coefficient of restitution and $v_1,v_2$ are the velocities of the balls after collision, then:

Q. A ball of mass $m$ moving at a speed $v$ makes a head-on collision with an identical ball at rest. The kinetic energy of the balls after the collision is three fourths of the original. Find the coefficient of restitution.

Q. Two identical balls are approaching towards each other on a straight line with velocity 2 m/s and 4 m/s respectively. Find the final velocities of 2 balls after an elastic collision between them: