Question

If body of mass is 10 Kg is moving with velocity of 5m\s then calculate the momentum of that body.​

Answer 1

Answer:

first of fall we convert kg into h because is m I hope it helps you

Answer 2

Answer:10 m/s

Explanation:

For a perfectly elastic collision, coefficient of restitution is e=1.

Let u and v be the velocities of 10 kg and 1 g masses after collision.

Thus, e=  

rel. vel. of approach

rel. vel.of separation

​  

=  

5−0

v−u

​  

=  

5

v−u

​  

 

But, as e=1, we have v−u=5.

Total momentum before collision is P=10×5=50 kg m/s

Total momentum after collision is P=10×(v−5)+0.001×v=10.001v−50

Thus, 10.001v−50=50⇒v=  

10.001

100

​  

≈10 m/s