Question 1 2 pts Everyone says "Life with your legs, not your back." Why is this? [MCAT Style Question] This statement is incorrect, you should always life with your back to maximize torque. O O The leg muscles are larger and the knee joint is stronger and better able to cope with the forces involved than are the lower spinal joints. 0 There is no advantage since the upper leg extensor muscles have no greater mechanical advantage than the back muscles. For Questions 4-6 Consider the following: A thin-walled hollow cylinder (mass = m, radius = r) and a solid cylinder (also, mass = m, radius = r) start from rest at the top of an incline that is ho = 5.0m. Solid Hollow cylinder cylinder ho Zero level he = 0 mQuestion 2 1 pts For the image below {a rod in static equilibrium) Choose the best location for you to place the rotational axis if you want to solve for F2 with a single equation. [MCAT Style] 2(JN *' 4r! '1'" 2:." -+- d '1'" ti Iv 10 N F1 30 N 0 F1 0 F2 0 All the way to the left 0 All the way to the right Question 3 2 pts For the image below {a rod in static equilibrium) if the magnitude of F2 is found to be 75 N, what is the magnitude of F1? 2031 - 4d -+- 2:: + a -+- d F, 10 N 1'] 30 N OSSN Q45N 05w 0 You would need to know d to solve this Question 4 5 pts (8) Determine the thin-walled hollow cylinder's translational speed upon reaching the bottom. (b) Determine the solid cylinder's translational speed upon reaching the bottom. *Show your work Upload Choose a File Question 5 2 pts Explain why we are not considering the friction force from the ramp on either object. Is there an occasion for when should we? Question 6 5 pts Now consider only the solid cylinder. Let's say we added another of the same solid cylinder to the top of the incline. Their masses and sizes are identical. One cylinder rolls without slipping, while the other slides frictionlessly without rolling. They both travel a short distance at the bottom and then start up another incline. (a) Show that they both reach the same height on the other incline, and that this height is equal to their original height. (b) Explain why the time for the rolling motion is greater than that for the sliding motion of the cylinders