In a head on elastic collision of a heavy vehicle moving with a velocity of $10{\text{ms}}^{-1}$ and a small stone at rest, the stone will fly away with a velocity equal to

Q. In a head on elastic collision of a heavy vehicle moving with a velocity of $10{\text{ms}}^{-1}$ and a small stone at rest, the stone will fly away with a velocity equal to

Q. In the elastic collision of heavy vehicle moving with a velocity 10 ms${}^{-1}$ and a small stone at rest, the stone will fly away with a velocity equal to :

Q. A heavy truck moving with a velocity of $60km{h}^{-1}$ collides with a light drum at rest. If the collision be elastic, then the velocity of the drum immediately after collision will be

Q. A small ball of mass $10\text{kg}$ moving with initial velocity of $4\text{m/s}$ collides head on with a heavy iron ball initially moving with velocity $0.2\text{m/s}$ as shown in the figure below. The velocity of $10\text{kg}$ mass after collision will be approximately (Assume collision to be perfectly elastic)

Q. Consider the following statements A and B. Identify the correct choice in the given answer
A : In a one - dimensional perfectly elastic collision between two moving bodies of equal masses, the bodies merely exchange their velocities after collision
B : If a lighter body at rest suffers perfectly elastic collision with a very heavy body moving with a certain velocity, after collision both travel with same velocity