Question

A body P has mass m and velocity v. Another body Q has mass 8 m and velocity 1.25 v. The ratio of momentum of P and Q is:​

Answer 1

The momentum of an object is defined as the product of its mass and velocity. Therefore, the momentum of object P is:

pP = mv

And the momentum of object Q is:

pQ = (8m)(1.25v) = 10mv

The ratio of momentum of P and Q is:

pP/pQ = (mv)/(10mv) = 1/10

Therefore, the ratio of momentum of P and Q is 1/10.