Define muscular force and mechanical force with examples.

The force exerted by the muscles of arms or legs or any other body part in order to do some work is called muscular force.

Kicking a football, pushing a car are some examples.

Mechanical force is a force between two objects which require physical contact with each other. It is the force created by the movement of an object over a distance. It requires a medium to travel. Force used by tractor or bulldozers, pushing a door are some examples.