Newton's Third Law of Motion

What is the S.I. unit of Action in Newtons third law of motion?

A horse refuses to pull a cart. The horse reasons, "according to Newton's third law, whatever force I exert on the cart, the cart will exert an equal and opposite force on me so the resultant force will be zero and I will have no chance of accelerating the cart." What is wrong with this reasoning? 

State the consequences of Newton third law of motion.

What is meant by recoil velocity ?

What is meant by muzzle velocity?

Mention the action-reaction pair as a person takes a step to walk.

Action and reaction force acts on:

According to third law of motion, action and reaction:

Write characteristics of action and reaction pair of forces.

Action and reaction

1. Act on two different objects
2. Have equal magnitude
3. Have opposite directions
4. Have resultant force as zero

Why gun recoils when bullet is fired from it? Explain.

In a rocket of mass $10 \mathrm{kg}$, fuel is consumed at a rate of $40 \mathrm{kg}/\mathrm{s}$. The velocity of gases ejected from rocket is $5\times {10}^4 \mathrm{m}/\mathrm{s}$. The thrust on the rocket is 

A cannon after firing recoils due to ?

A man is standing on a boat in still water. If he walks towards the shore the boat will

When a fruit falls from a tree

Explain the physics behind a person walking on the road.

When the sailor jumps from a boat, it goes forward too.

What happens when the sailor jumps from a boat?

The recoil of a gun after firing of a bullet can be explained using

Seat belts are used to provide safety for passengers whose motion is governed by Newton's laws.