STATEMENT-l : 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-2 : In an elastic collision, the linear momentum of the system is conserved.

Options

A. Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-1.
B. Statement-1 is True, Statement-2 is True, Statement-2 is NOT a correct explanation for Statement-1
C. Statement-1 is True, Statement-2 is False.
D. Statement-1 is False, Statement-2 is True.

Answer

D

Explanation

(d) Statement 1: For an elastic collision, the coefficient of
restitution =1
`e=|(v_2-v_1)/(u_1-u_2)| rArr |v_2-v_1|=|u_1-u_2|`
`rArr` Relative velocity after collision is equal to relative
velocity before collision. But in the statement relative
speed is given.
Statement 2: Linear momentum remains conserved in
an elastic collsion. This is statement is true.