Friction on Inclines

“A 10 kg box rests on an inclined plane angled at 20°. The coefficient of static friction between the box and the plane is 0.3. Will the box slide down the plane? Show your calculations and explain your reasoning. A block of wood with a mass of 5 kg is placed on an inclined plane with an angle of 30°. If the force of gravity parallel to the incline is 24.5 N and the maximum force of static friction is 15 N, will the block slide down the plane? Show your reasoning.”