Question

A ball of mass 0.04 Kg is moving at a speed of 3 ms when it hits a stationary ball of mass
0.06 Kg. After the impact the first ball is stationary. Find the speed of the second ball. [3]
I​

Answer 1

Answer:

Explanation:

m1​u1​+m2​u2​=m1​v1​+m2​v2​

when bodies collide with each other their velocities will be equal as the ball is in rest.

0.4×3+0.6×0=v1​(0.4+0.6)

1.2+0=v1​(1)

∴v1​=v2​=1.2ms−1