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Kindly explain this question to me,a horizontal force of10N is necessary to just hold a block stationary against a wall . The coefficient of friction between the block and the wall is 0.2. The weight of theblock is?my doubt is why cant i equate 10N =umg?

Megha , 7 Years ago
Grade 12
anser 1 Answers
Nayan Sharma

Last Activity: 7 Years ago

Imagine a 3D figure of the cube attached with the wall. Here, direction of the following forces are-mg=-jFriction = jHorizontal force = -kSo here, uN = mg, where N=10 newton

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