block of mass 0-1 kg is held against a wall by applying a horizontal force of 5 N on the block. If the coefficient of friction between the block and the mass is 0.5, the magnitude of the frictional force acting on the block is :

block of mass 0-1 kg is held against a wall by applying a horizontal f

1.	block of mass 0-1 kg is held against a wall by applying a horizontal force of 5 N on the block. If the coefficient of friction between the block and the mass is 0.5, the magnitude of the frictional force acting on the block is :
Answer» 0.98 N 0.49 N 4.9 N 2.5 N Solution :Force of limiting FRICTION `F_(f)= muR = 0.5 xx 5 = 2.5 N` ` wt. of block = mg = 0.1 xx 9.8 = 0.98N` As weight is less than limiting friction ::. block does not move :. FRICTIONAL force = wt. of block = 0.98 N Hence correct CHOICE is (a).

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block of mass 0-1 kg is held against a wall by applying a horizontal force of 5 N on the block. If the coefficient of friction between the block and the mass is 0.5, the magnitude of the frictional force acting on the block is :

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