Sunday, September 22, 2013

Why does a falling ball bounce?

                            Why does a falling ball bounce?

When a ball falls, it is temporarily deformed. Because of elasticity, the ball tends to regain its original shape , for which it it presses the ground and bounces. It is called Newton's third law of motion . It states that For every action , there is equal and opposite action.
But the ball will not bounce to its original height through which it has fallen. In subsequent bounces, this is repeated till the air inside the ball loses its force.
Finally , it rests on floor.