There is a mass of 10 kg which is placed on an inclined plane making an angle of 30° with the horizontal. A force of 15 N is applied on the object along the incline in downward direction. Determine the value of net force acting on the block, (if coefficient of static friction is = 0.8 and coefficient of kinetic friction is 14 =0.5). a b C d 3.9 N, upward along the incline 21.6 N, downward along the incline ON 98 N

A 280.12-kg block is resting on a 51o incline with a coefficient of friction = 0.74. Find the required horizontal force P in KN that is necessary to prevent motion down the incline.

The coefficient of static friction between a 2.0 kg box and a plane inclined 28° to the horizontal is 0.65. What maximum applied force can be exerted on the box without moving it?

A box with a mass of 0.5 slugs lies on an inclined plane making an angle of 30o with the horizontal.  If the coefficient of kinetic friction between the box and the plane is 0.4, what is the magnitude of the force that must be applied parallel to the incline to keep the box moving down the incline at a constant speed?

A 315 kg block on a frictionless surface was pulled by a horizontal force with magnitude 230 N to make it move along the horizontal surface. Find the normal force.

A box with a mass of 9.52kg, is on a ramp with an incline of angle of 23.10°. What is the coefficient of static friction?

Body A has a mass of 25 kg and body B has a mass of 50 kg. The coefficient of friction for all surfaces is 0.20. Find the minimum force P that can be applied to B without disturbing the equilibrium of the system.

A crate of mass 17.0 kg rests on a level surface. If the coefficient of kinetic friction between the crate and surface is 0.440, calculate the following. edi ume (a) Calculate the normal force. (Give the magnitude.) (b) Calculate the magnitude of the kinetic friction force when a horizontal applied force of 91.0 N moves the crate. (c) Calculate the normal force when the 91.0-N applied force is exerted at an angle of 32.5 above the horizontal. (Give the magnitude.) (d) Calculate the magnitude of the kinetic friction force when the 91.0-N applied force is exerted at an angle of 32.5 above the horizontal.

A 0.85 kg block of wood is stationary on an incline that is15◦above horizontal. A force of 3.0 N is being applied toit 75◦below horizontal, directly into the incline (the force isperpendicular to the incline). What is the minimum coefficientof static friction required to keep the block stationary?

Figure 4 shows a block-pulley system to lift heavy objects. Box mı, of mass 10.0 kg, rests on a surface inclined at e =25 °to the horizontal. It is connected by a lightweight cord, which passes over a massless and frictionless pulley, to a bag of rice, which hangs freely as shown. Given coefficient of static friction, 4; and coefficient of kinetic friction, g are 0.40 and 0.15, respectively. mi Figure 4