Question

What is the momentum of a $10000kg$ truck whose velocity is $20m/s$?

• A. $2\times 10^{5}kgm/s$
• B. $1\times 10^{5}kgm/s$
• C. $4kgm/s$
• D. None of these

Answer 1

Answer: (A)

Momentum is defined as product of mass and velocity. Therefore
$p=mv$
Given, $m=10,000kg,v=20m/s$
$\therefore p=10,000\times 20$
$=2\times 10^{5}kg-m/s$