Why do school bags have wide straps?

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A To decrease the total weight of the bag.
B To increase the pressure exerted on the shoulder.
C To decrease the pressure exerted on the shoulder.
D To make the bag look more attractive.

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Answer: C. To decrease the pressure exerted on the shoulder.

Pressure is defined as force per unit area. A wider strap increases the surface area over which the weight is distributed, minimizing the pressure on the student's shoulders.

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Why do school bags have wide straps?

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