7A. A man is trying to push a couch that weighs 315 pounds with ahorizontal force of 135 lb. If the coach is not moving, calculate thenormal force (N), the force due to friction (F₁), and the coefficient ofstatic friction (us) between the floor and the coach legs. (Note: a freebody diagram must be drawn to receive credit.)

Determine the normal force (N), the force due to friction (F¹), and the coefficient of static friction (µs) between the inclined surface and the block. (Note: a free body diagram must be drawn to receive credit.)