A person pushes a crate rightward along a rough horizontal surface by pushing downward at 30 degrees below the horizontal with a force of magnitude F = 50.0 (N). The crate has mass m = 10.0 kg. See the diagram below. Assume the coefficient of kinetic friction between the bottom of the crate and the surface is µk = 0.10.
(a) What is the magnitude N of the normal force acting on the crate?
(b) What is the horizontal acceleration ax of the crate?