Question

Give reasons for the following:
1. It is easier to hold a school bag with wide straps than the one with thin strings.



2.bottle gets crushed when all its air is removed.​

Answer 1

Answer:

1. Because wide straps produces less pressure on the shoulder

Answer 2

Answer:

it is easier to hold a school bag with straps then the one with thin string because pressure is equal to force upon area if area increases less pressure will exerted therefore invite district more area is there which exert less force in our shoulder while as if string is present then it will exert more pressure and got tired easily.