Two identical balls are approaching towards each other on a straight line with velocity `2m//s` and `4m//s`, respectiely. Find the final velocities after elastic collision between them.

Two equal masses m_1 and m_2 moving along the same straight line with velocites +3 m//s and - 5 m//s respectively collide elastically. Their velocities after the collision will be respectively.

Two equal masses m_1 and m_2 moving along the same straight line with velocites +3 m//s and - 5 m//s respectively collide elastically. Their velocities after the collision will be respectively.

Two equal masses m_1 and m_2 moving along the same straight line with velocites +3 m//s and - 5 m//s respectively collide elastically. Their velocities after the collision will be respectively.

Two elastic bodies P and Q having equal mases are moving along the same line with velocities of 16 m/s and 10 m/s respectively. Their velocities after the elastic collision will be in m/s :

Two elastic bodies P and Q having equal mases are moving along the same line with velocities of 16 m/s and 10 m/s respectively. Their velocities after the elastic collision will be in m/s :

Two balls of equal masses movin with velocities 10m/s and -7m/s respectively collide elatically. There velocities after collision with be

A 10kg ball and a 20kg ball approach each other with velocities 20m//s and 10m//s respectively. What are their velocities after collision, if the collision is perfectly elastic ?

Two particles of masses m and 2m moving in opposite directions collide elastically with velocity 2v and v , respectiely. Find their velocities after collision.