Why school bags have broad shoulder steps ?
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Answered by
5
It is difficult to hold a school bag having a thin strap because the area of contact with the body decreases. The pressure exerted by the school bag on the body increases. So school bags will have broad shoulder strap.
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3
They have broader straps because if the area is more the pressure will be less...as pressure Is related to area
P=f/a
P=f/a
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