Question

A mall of mass m moving with velocity v strikes a wall and returns with the same velocity. What will be the change in momentum of the wall? Assuming no external force acts on the system​

Answer 1

Answer:

The answer is 2mv.

Explanation:

P(Momentum)= mass×velocity

Here it is mentioned that when it goes, it even returns back, so 2 has to multiplied and mv is momentum's formula so the answer is 2mv