Question

if a ball of mass 0.4kg moving with a velocityof 3ms collides elastically with another ball of mass 0.6kg find their velocities at collision​

Answer 1

Explanation:

Formula,

m

1

u

1

+m

2

u

2

=m

1

v

1

+m

2

v

2

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

0.4×3+0.6×0=v

1

(0.4+0.6)

1.2+0=v

1

(1)

∴v

1

=v

2

=1.2ms

−1