Forced are used in everyday action like- Pulling

Forced are used in everyday action like- Pushing

Forced are used in everyday action like- Lifting

A force can move a stationary body.

A force can stop a moving body.

A force can change the speed of moving body.

A force can change the shape and size of the body.

If the resultant of all the forces acting on a body is zero, they are called balanced forces. They do not produce any motion.

Balanced forces cannot produce motion in a stationary body or stop a moving body however can change the shape and size of the body.

If the resultant of all the forces acting on a body is not zero, they are called unbalanced forces.

When Unbalanced force acts on a body, it produces motion in the body.

Newton's first law of motion: An object remains in a state of rest or of uniform motion in a straight line unless compelled to change that state by an applied force.

Second Law Of Motion: Impacts produced by objects depend on their mass and velocity.

If we throw a two cricket ball of the same mass at different speed and velocity,more force is required to stop a cricket ball which is moving with higher speed and velocity.

Second Law Of Motion: If a body is at rest its velocity is zero hence its momentum is also zero.

Momentum of gun and bullet before firing is zero because their velocity is zero.

Second Law Of Motion: Every moving body posses Momentum.

A karate player break piles of tiles because he strike the piles with very very fast .

Second Law Of Motion: Body will have large Momentum if its mass is large, if its velocity is large or if both its velocity and mass is large.

Though a cricket ball is not heavy, when its thrown with a high speed acquires a very large momentum and sometimes hurts the batsman.