3. [8 points] Curious Cat (CC) is at it once again. This time CC decides to climb up a ladder of length L leaning against the house at angle + hoping to find out what a roof looks like. The ground provides a horizontal force on the bottom end of the ladder, but there is no vertical force between the wall of the house and the upper end of the ladder. The ladder's mass is uniformly distributed along its length. Fortunately, CC makes it all the way to the top of the ladder without the ladder slipping. As CC climbs up the ladder at constant speed starting from the ground, . . (a) (1 point) what happens to the magnitude of the normal contact force acting on the bottom end of the ladder due to the ground? (A) It increases. (B) It decreases. (C) It doesn't change. (b) (1 point) ... m L M what happens to the magnitude of the normal contact force acting on the top end of the ladder due to the wall of the house? [Same choices as (a)] (c) (6 points) What is the magnitude of the horizontal force acting on the ladder due to the ground as CC just reaches the very top end of the ladder? Please show your work.