What is momentum? Write its `SI` unit. Interpret force in term of momentum. Represent of the following graphically
(a) momentum versus velocity when mass is fixed.
(b) momentum versus mass when velocity is constant.

Explanation

Force is equal to rate of change of momentum of the body.
As `p=mv`, therefore, when mass `(m)` is fixed,`p prop v`
When the velocity `v` is constant, `p prop m`
Therefore, `p` versus `v` graph and `p` versus `m` graph, both are straight lines as shown in(figure)