Question

In one dimensional elastic collision a body of mass 2kg collides with a another body body of mass m which is at rest and returns with a speed one third of its initial speed find the value of m​

Answer 1

Answer:

MARK AS BRAINLIEST ANSWER

Explanation:

Correct option is

C

1kg

Let mass of second body be m kg and its velocity after collision be v.

The collision is elastic i.e e=1

∴

u−0

3

u

−v

=−1 ⟹v=

3

4u

Applying conservation of momentum:

m

1

u+0=m

1

3

u

+mv

2u=2×

3

u

+m×

3

4u

⟹m=1 kg