A block of mass 0.1 is held against a wall applying a horizontal force of 5N on the block. If the coefficient of friction between the block and wall is 0.5,the magnitude of frictional force acting on the block is.
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Limiting frictional force, fl=μsN=0.5×5=2.5N. tending to produce relative motion is the weight (W) of the block which is less than fl. Therefore, the frictional force is equal to the weight, the magnitude of the frictional force f has to balance the weight 0.98 N acting downwards. Therefore the frictional force =0.98N.06-May-2020
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