Question

22. Two bodies of mass 1 kg and 2 kg respectively move in opposite directions with a speed
of 5 m/s and collide. What is the total momentum before collision? [Ans. 5 kg-m/s in the
direction of second body]​

Answer 1

Answer:

total momentum before collision :

      1 kg * 5 m/s + 2 kg (-5m/s)  = - 5 kg-m/s

                   It is in the direction of motion of 2kg mass