Comprehension # 2
When two bodies collide normally they exert equal and opposite impulses on each other. Impulse `=` change in linear momentum. Coefficient of restitution between two bodies is given by :-
`e = |"Relative velocity of separation"|/|"Relative velocity of approach"| = 1`, for elastic collision

Two bodies collide as shown in figure. During collision they exert impulse of magnitude J on each other.
For what value of `J` (in `Ns` ) the `2 kg` block will change its direction of velocity?

Options

A. `J lt 12`
B. `J gt 12`
C. `J lt 10`
D. `J gt 10`

Answer

B