A boy of mass 4 kg is standing on a piece of wood having mass 5 kg. If the coefficient of friction between the wood and the floor is 0.5, the maximum force that the boy can exert on the rope so that the piece of wood does not move from its place is ________N. (Round off to the Nearest Integer)
[Take `g=10ms^(-2)`]

A boy of mass 40kg is climbing a vertical pole at a constant speed.If the coefficient of friction between his palms and the pole is 0.8 and g=10m/s^(2) ,the horizontal force that he is applying on the pole is?

Two blocks ( m = 0.5 kg and M = 4.5 kg) are arranged on a horizontal frictionless table as shown in figure. The coefficient of static friction between the two blocks is (3)/( 7) . Then the maximum horizontal force that can be applied on the larger block move together is "_____________" N. ( Round off to the Nearest Integer ) [Take as 9.8 ms^(-2) ]

A block of mass m=4kg is placed oner a rough inclined plane as shown in figure. The coefficient of friction between the block and the plane is mu=0.5 . A force F=10N is applied on the block at an angle of 30^(@) .

A block of mass 2 kg is kept on a rough horizontal floor an pulled with a force F. If the coefficient of friction is 0.5. then the minimum force required to move the block is :-

The coefficient of static friction between two blocks is 0.5 and the table is smooth. The maximum horizontal force that can be applied to move the blocks together is N. (take g = 10 ms^(-2) )

A car of mass 800 kg moves on a circular track of radius 40 m . If the coefficient of friction is 0.5, then maximum velocity with which the car can move is

A body of mass 1 kg rests on a horizontal floor with which it has a coefficient of static friction (1)/(sqrt(3)) . It is desired to make the body move by applying the minimum possible force FN. The value of F will be ________. (Round off to the Nearest Integer) [Take g=10ms^(-2) ]