Friction on Inclines

“A 25 kg box is on an inclined plane with an angle of 20° relative to the horizontal. The coefficient of friction between the box and the plane is 0.35. Calculate the force of friction acting on the box. (Use g = 9.8 m/s²) An object with a mass of 12 kg rests on an inclined plane angled at 45°. If the coefficient of friction is 0.18, what is the force of friction acting on the object? (Use g = 9.8 m/s²) A 5 kg block sits on an inclined plane that makes an angle of 30° with the horizontal. The coefficient of friction between the block and the plane is 0.6. Determine the force of friction acting on the block. (Use g = 9.8 m/s²) ”