Question

Define momentum of a body. What are the units of momentum?

Answer 1

1. Momentum is a property of a moving body by the virtue of both its mass and velocity.
2. It is defined as, “The product of the mass of a body and its velocity is called the momentum of the body.”
3. Momentum of a body is denoted by p.
4. Mathematically, The momentum of a body = $MassofthebodyxVelocityofthebodyor,p=mxv$
5. Momentum is a vector quantity. Thus, the momentum of a body has both magnitude and direction.
6. In the SI system, mass is measured in kilograms and velocity in meters per second. so,$SIunitofmomentum=kgxms=kg.ms=kg.m.s^{-1}$.