Question

Give reasons for the followings: [3] (a). A ball rolling on the ground slows down and finally stops. (b). On a cold, dry day, a child takes two balloons and rubs them against his sweater. When taken near each other, the balloons repel each other. (c). It is difficult to burst an inflated balloon with your finger but it becomes easier with the needle​

Answer 1

Answer:

a) Friction b) static friction c) lesser area= more pressure