A man pulls a block of mass equal to himself with a light string .The coefficient of friction between the man and the floor is greater than that between the block and the floor

A man pulls a block heavier than himself with a lioght rope. The coefficient if friction is the same between the man and the ground, and between the block and the ground.

In Fig. 7.149 , coefficient of friction between the block and the floor is mu . Force F that will move the block on the floor with a uniform speed is :

As shown in figure, A is a man of mass 60 kg standing on a block B of mass 40 kg kept on ground. The coefficient of friction between the feet of the man and the block is 0.3 and that between B and the ground is 0.2 . If the person pulls the string with 125 N force ,then

As shown in figure, A is a man of mass 60 kg standing on a block B of mass 40 kg kept on ground. The coefficient of friction between the feet of the man and the block is 0.3 and that between B and the ground is 0.2 . If the person pulls the string with 125 N force ,then

A man of mass 60 kg sitting on ice pushes a block of mass of 12kg on ice horizontally with a speed of 5 ms^(-1) . The coefficient of friction between the man and ice and between block and ice is 0.2. If g =10 ms^(-2) , the distances between man and the block, when they come to rest is