# why is it difficult to hold a school bag having a strap made of thin & strong strip?

The broad straps of school bags reduce the pressure on the shoulder or on the hand.

As we know that

Pressure = Force/Area

So, increasing the area decreases the pressure.

In case of thin straps the, the area is small and hence pressure is large. So it is difficult to hold it.For larger straps the area is large thus reducing the pressure can be easily carried.

• 10

we know that when surface area decreases pressure increases. in the case of a bag with thin and strong strip the surface area is less and thus the pressure is high. this causes more pain. that is why it is difficult to hold a school bag with thin and strong strip.

• 7

hey !! if i m nt wrng thn ths is cause of pressure distribution..

hope it helps!!!! shweta

• -5
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