3(b) The balloon did not burst when it is pressed onto 100 nails because 1. the nails are not sharp

2.the surface area of 100 nails produce high pressure on the balloon
3. the larger surface area of 100 nails produce low pressure on the balloon

3(c) To reduce pressure on the contact surface, we must apply force onto the surface area.
1.largest
2.smallest
3. Any size of