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2. A block of mass m is stationary on a horizontal surface. It is connected with a string which has no tension. The coefficient of friction between the block and surface is m. Then, the frictional force between the block and surface is

Answer» 2. A block of mass m is stationary on a horizontal surface. It is connected with a string which has no tension. The coefficient of friction between the block and surface is m. Then, the frictional force between the block and surface is


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