Statement I In an elastic collision between two bodies, the relative speed of the bodies after collision is equal to the relative speed before the collision. Statement II In an elastic collision, the linear momentum of the system is conserved.

Question

Statement I In an elastic collision between two bodies, the relative speed of the bodies after collision is equal to the relative speed before the collision. Statement II In an elastic collision, the linear momentum of the system is conserved. (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

In case of elastic collision, coefficient of restitution

e = 1

.
Magnitude of relative velocity of approach
= Magnitude of relative velocity of separation.
But relative speed of approach

\neq =

Relative speed of separation

Q. Statement I In an elastic collision between two bodies, the relative speed of the bodies after collision is equal to the relative speed before the collision. Statement II In an elastic collision, the linear momentum of the system is conserved.

In case of elastic collision, coefficient of restitution e=1. Magnitude of relative velocity of approach = Magnitude of relative velocity of separation. But relative speed of approach = Relative speed of separation

Q. Statement I In an elastic collision between two bodies, the relative speed of the bodies after collision is equal to the relative speed before the collision.
Statement II In an elastic collision, the linear momentum of the system is conserved.

In case of elastic collision, coefficient of restitution $e = 1$ .
Magnitude of relative velocity of approach
= Magnitude of relative velocity of separation.
But relative speed of approach
$\neq =$ Relative speed of separation