Engineering homework help

A block is placed on a slope at an angle of ? = 30.3o as shown in the diagram (the diagram is not to scale).The height of the inclined plane is h = 1.450 m. The block has a mass of m = 7.80 kg.(1) Neglecting friction, what is the speed of the block at the bottom of the slope if it is released from rest at the top of the slope?(2) If the coefficient of kinetic friction is ?k = 0.111 and the coefficient of static friction is ?s = 0.171 what is the speed of the block at the bottom of the slope? Assume it starts from rest at the top of the slope.(3) What is the magnitude of the net force on the block halfway down the slope?