Friction on an Inclined Plane

“An object of mass 10 kg is placed on an inclined plane that makes a 30-degree angle with the horizontal. If the coefficient of kinetic friction is 0.4, calculate the force of friction acting on the object as it slides down the incline. Show your work. A 15 kg box is sliding down an inclined plane with an angle of 45 degrees. If the coefficient of kinetic friction is 0.5, calculate the force of friction acting on the box. Show your work.”