Question

give one example in each of the following cases where a force 1. stops a moving body 2. moves a stationary body 3. changes the shape of a body 4. changes the sulize of a body

Answer 1

1. when we apply the breaks of a car the disk present in the wheel of the car apples the force in the opposite direction of the movement of the wheel which slows down the wheel and finally stops it
2. when we push the door it comes in motion and changes it's position and speed. it's initial speed before applying force was 0 and after applying force was more than 0
3. when press the balloon filled with air it changes it's shape
4.when we blow air in ballon it's size becomes bigger than it was initially