Use the following information to answer the next four questions. A girl riding a unicycle (a one wheeled bicycle) pushes the pedal of the unicycle down vertically with a force F, and accelerates up the ramp as shown in the diagram below. The ramp is inclined at an angle of from horizontal. The mass of the person is 5M and the mass of the unicycle is M; the radius of the unicycle wheel is 5R and the length of the pedal lever is 3R. Treat the unicycle wheel as a thin walled hoop. The static friction force the ground exerts on the tire is fs. (Assume that the unicycle is rolling up the hill.) Question 24 4 pts Suppose that later the girl continues to move up the ramp, but now with no acceleration. What is the relationship now between the force F, that the girl pushes on the pedal and the static friction force of the ramp on thw wheel f₂? OF.=f 01- OF.=f None of the other answers is correct. OF. = -f, O fx H (6Mg cos 0) Question 25 4 pts If the girl started to fall over and rotate about the axle of the unicycle, choose the best expression to use for her moment of inertia, if H = her height, and X = distance of her center-of-mass from the axle. 01=MH² None of the other answers is close to her moment of inertia about the axle. 01-MH² 01=MX² 01=MX2 01=MX² 01=MX²