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A block of mass 1 kg is pushed against a rough surface with a force of 20N. The coefficient of static friction being 1/4. Another horizontal force of 10N, is applied on block in a direction parallel to wall. will the block move?if yes, with what acceleration. If no,find frictional force exerted by wall on block.

A block of mass 1 kg is pushed against a rough surface with a force of 20N. The coefficient of static friction being 1/4. Another horizontal force of 10N, is applied on block in a direction parallel to wall. will the block move?if yes, with what acceleration. If no,find frictional force exerted by wall on block.
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Grade:11

1 Answers

Arun
25750 Points
5 years ago
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Dear Tushar

max static friction force that can be exerted by wall on block is =1/4*20 =5 N

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since applied horizontal force 10 N is less than max static force so block will move

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so friction force exerted by wall on block is =10 N

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