The action-reaction forces:

$(a)$ State the law of conservation of momentum.
$(b)$ Mention two factors which determine the momentum of a body.
$(c)$ Prove the law of conservation of momentum with clear explanation,diagram and equation.

Which of the following has the largest inertia?

State whether the following statement is true or false:
Impulse represents the rate of change of momentum of a body.

Two similar vehicles are moving with the same velocity on roads,such that one of them is loaded and the other is empty. Which of the two vehicles will require a larger force to stop it? Give reasons.

Give an example to show that friction is an important factor in satisfying Newton's third law of motion.