A glider of mass m1 on a frictionless horizontal track is connected to an object of mass mg by a massless string. The glider accelerates to the right, the object accelerates downward, and the string rotates the pulley. The pulley has moment of inertia I and radius R, as shown in the diagram. a) Write the second law for rotations 71%,; = I52 for the pulley, i.e. find an expression for Tnet. Enter your response below in terms of T2, T1, R. b) Why is T2 T2. 0 It is not, T1 2 T2. e) Explain your choice: f) Assume that m1 2 m2 = 250 g and that the moment of inertia of the pulley is the same as for a ring (In-\"g = M R2 ). The mass of the pulley M is 150 g. What is the acceleration of the glider? Enter your response in units of [111/52]. WQ11.5 2 points possible (graded) A cylinder and a hoop have the same mass M and radius R. They are released from the same height of h : 1.0 m nd roll down a ramp without slipping. Calculate their speeds at the bottom of the ramp. (Remember: [disk = %MR2 and 1th = MR2). a) Speed of hoop: Enter your response in units of [m/s]. b) Speed of cylinder: Enter your response in units of [In/S]