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JEE Main Physics question

PhysicsLaws of MotionJEE Main

A body of mass 2 kg is kept by pressing to a vertical wall by a force of 100 N. The coefficient of friction between wall and body is 0.3. Then the frictional force is equal to

Answer: (B)

Solution

Since the body is held static against the wall (not sliding), the friction force just balances gravity: f = mg = 2×10 = 20 N. (This is well

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Question ID VK-153414