In Fig. 6-34 a block of weight W experiences two applied forces, each of magnitude W/2. What coefficient of static friction between the block and the floor puts the block on the verge of sliding?

What is value of static friction force on the block?

What is the value of applied force ‘F’ which is exerted at an angle $\theta$ with the horizontal on a block of mass ‘m’ placed on a horizontal rough surface, if the coefficient of static friction between the block and the surface is , such that the block is on the verge of moving horizontally?

The system shown is just on the verge of slipping. The coefficient of static friction between the block and the table top is :

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 :

In Fig. 6-37, a block of mass m = 5.0 kg is at rest on a ramp. The coefficient of static friction between the block and ramp is not known. Find the magnitude of the net force exerted by the ramp on the block.

In the figure, a block of weight $60N$ is placed on a rough surface. The coefficient of friction between the block and the surface is $0.5$ . What should be the weight $W$ such that the block does not slip on the surface?

A block of weight 30 N is in contact with a rough wall. A force of 50 N is applied as shown in the figure. Find the coefficient of static friction between the wall and the block assuming the block is just about to slip.

A force of F = 12.0 N is applied to a 8.00 kg block at a downward angle of ${30}^{\circ }$ as shown in the figure.

The coefficient of static friction between the block and the floor is 0.700 and the coefficient of kinetic friction is 0.400. What is the magnitude of the frictional force on the block?

The coefficient of static friction between the two blocks is 0.363. What is the acceleration of block 1 so that block 2 does not fall ?

Figure 6-28 shows a 6.0 kg block on a ${60}^{\circ }$ ramp with a coefficient of static friction of 0.60. A force $\overrightarrow{F}$ is applied up the ramp. What magnitude of that force puts the block on the verge of sliding down the ramp? 6.0 kg