Question

Two bodies each of mass 1kg are moving in a straight line but opposite in direction with the same velocity of 2m/s. They collide with each other and stick to each other after collision.What
is the common velocity of these bodies after collision.​

Answer 1

Answer:

zero

Explanation:

Initial momentum of object 1 = mv

=2×2.5=5kgm/s

Initial momentum of object -2 = mx (-v)

=2×(−2.5)

=−5kgm/s

Momentum of the combination of two after collision =5+(−5)=0

So, velocity of combination =Mass of combinationMomentum of combination

=40=0