Question

What is a force? What changes can be produced by a force?

Answer 1

Force is a push or a pull acting on an object which changes or tends to change state of rest or motion of an object.
Force is a vector quantity.
S.I UNIT OF FORCE IS NEWTON
C.G.S units are Dyne.
Force can produce following Changes when acts on an object:
1. Force can change the state of rest or motion of an object.
2. Force can change the shape of an object.
3. Force can change the size of an object.
4. Force can change the direction of motion.
5. Force can increase or decrease the speed of motion.

Answer 2

force is a push or pull of an object
which changes or tends to change the state of rest or motion of an object force is a vector quantity SI unit of force is Newton CGS unit are dyne