Hi pupil here's your answer :::
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Force = It is a push or pull which either changes or tends to change the state of rest or of uniform motion of a body.
In our everyday life, we use force, quite frequently to perform various activities, some examples are Kicking a football, squeezing a tube of toothpaste lifting a book, catching a ball opening a door etc.
1 ) Move a body lying at rest :
@ Kicking a Stationary Football.
@ Lifting a book kept on a table top.
@ Hitting a stationary ball with a bat.
2) Stop a moving body :
@ A moving ball can be stopped by the force of our hand.
@ A moving ball can stop on its own due to the force of friction.
@ A rotating top can be stopped by a force exerted by our hands.
3) Change the speed of a moving body :
@ If a person pushes a moving swing, it will move faster.
@ When more forces applied on the pedals buy a cyclist, speed of cycle increases
4) Change the direction of a moving body :
@ When a batsman hit the ball with his bat, the direction of the moving ball changes.
@A Carrom counter changes its direction after a collision.
@ A football player hitting a ball coming towards him, towards the goal post.
5) Change the shape of an object :
@ When we squeeze toothpaste tube, it gets flattened.
@ When we stretch a rubber band, its shape and size changes.
@ On stretching a spring, its length changes
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Hope this helps ..........
