What is momentum? Write its SI unit. Interpret force in terms of momentum. Represent the following graphically

(a) Momentum versus velocity when mass is fixed.

(b) Momentum versus mass when velocity is constant.

Momentum is the product of mass and velocity of an object. It is a vector quantity.

The SI unit of momentum is kg m/s.

The force acting on an object equals the rate of change of momentum of the object.

Force = rate of change in momentum

mv = constant

The change in momentum formula is given as:

p = mv

Therefore, when mass m is fixed, p is proportional to v.

Similarly, when v is constant, p is proportional to m.

Therefore, and graph are both straight lines.