Question

1. Why is it difficult to hold a school
bag having a strap made of a thin
and strong string?

Answer 1

Explanation:

It is difficult to hold a school bag having a thin strap because the pressure on the shoulders is quite large. In the case of a thin strap, the contact surface area is very small. Hence, the pressure exerted on the shoulder is very large.

Answer 2

Answer:

Due to its thin size it excert high pressure on our shoulder so it's difficult to hold such a bag having thin strips