Question

A body P has mass 2 m and velocity 5 v. Another body Q has mass 8 m and velocity 1.25 v. Find out the ratio of momentum of P and Q.

• A. 1:1
• B. 3:2
• C. 2:1
• D. 1:2

Answer 1

Answer: (A)

The momentum is given as $M=mv$

Where, $m=$ mass of object,

$v=$ velocity of object

Momentum of first object $=2m\times 5v=10mv$

Momentum of second object $=8m\times 1.25v=10mv$, taking the ratio of the magnitude of momentum of Ist and IInd objects $|p_1|:|p_2|=1:1$

Hence, correct answer is B.