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Force is defined as push or pull which change or tends to change the position of the object. The effects of the force are mentioned below;-


1. Force can change the shape of an object , for example when we squeeze a toothpaste , a shaving cream or any tube, its shape will be change physically.

2. Force can also change the direction of motion of an object, for example a crickter can change the direction of a cricket ball by hitting with the bat.

3. Force can change the speed of  an object, for example, you can increase or decrease the speed of the cycle by paddling

4. Force can bring the object from rest to motion , for example - if a book is lying on the table, we can bring it in motion by pushing or by pulling it.


5. Force can brings an object from motion to rest, for example - a toy car is moving and we can stop that car by push or pull.

Force is a vector quantity, as it has both magnitude and direction.
Unit of the force is NEWTON and in CGS , it is dyne, we can calculate force by the formula F= m X a
where 'm' is the mass of an object and 'a' is the acceleration.