Question

A body of mass 2 Kg , Initially moving with a velocity of 10 m/s collides with

another body of mass 5 Kg at rest. After collision velocity of first body becomes

1m/s. Find the velocity of the second body​

Answer 1

Answer:

A body of mass 2kg , initially moving with a velocity of 10m/s colloids with another body of mass 5kg at rest. After collision velocity of first body becomes 1m/s.

Hope this helps you

Answer 2

Answer:

Velocity of the second body=3.6 m/s

Explanation:

According to the momentum conversion principle, The sum of the momentum of object 1 and the momentum of object 2 before the collision is equal to the sum of the momentum of object 1 and the momentum of object 2 after the collision.

m1 • v1 + m2 • v2 = m1 • v1' + m2 • v2'

Here, Before collision it is given that,

m1=2 kg v1=10 m/s

m2=5 kg v2=0 m/s

And after collision,

m1=2 kg v1'=1 m/s

m2=5 kg

To find- v2'=?

(2×10)+(5×0)=(2×1)+(5×v2')

20+0=2+5v2'

18=5v2'

v2'=3.6 m/s