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Question

There are two school bags A & B. Bag A is provided with a broader strap, while bag B is provided with a thinner strap. For the same load, a student likes bag A as he is comfortable with it; but with bag B, he develops a pain in his shoulders. This is because:


  1. Bag A has a broader strap than B, due to which the pressure felt is less for the same load.

  2. Bag B has a thinner strap than A, due to which the pressure felt is more for the same load.

  3. Both A & B

  4. None of these 


Solution

The correct option is D

None of these 


Since pressure is the thrust (normal force) per unit area, in bag A the pressure developed would be less than B for the same load as the straps of A is broader.

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