A block of mass 5 kg is placed on an incline plane that makes an angle of 30 degrees with the horizontal. The coefficient of static friction between the block and the plane is 0.4. What is the maximum force that can be applied to the block without causing it to slip down the plane?

(b) The force applied to the block is increased until the block begins to slip down the plane. What is the acceleration of the block as it slips down the plane?

(c) The block is released from rest at the top of the incline plane. What is the velocity of the block as it reaches the bottom of the plane?