Question

09. Give reasons for the following: (a)School bags or shopping bags have broad straps. (b) Swimming pools appear shallower (less deep) from outside. (c)We do not feel the tremendous amount of pressure that air exerts on us.​

Answer 1

Answer:

Shoulder bags are provided with broad straps so as to increase the surface area on which the force is acting. By doing so, the pressure decreases. As P = FORCE / AREA If the bags were provided with thin straps, the pressure would have increased causing pain in shoulders.

Answer 2

Answer:

a)on large area the force exerted is less

b)due to refraction

c)because our body has adapted to it

donot know it is wrong or right