3:05 AM Thu Oct 19 0\" e- a 23% [3' B apclassroom.collegeboard.org Forces 1 o o l' A block of mass m3 is being pulled up a ramp by a hanging object of mass mH, as shown In the figure above The blocks are attached to each other by a light string that passes over a pI " negligible mass and friction. Both the block and the hanging object are moving at consta 7 and the angle of the ramp with the horizontal' Is 9. The coefcient of kinetic friction between the block and the ramp is ,uK. Bookmark (a) On the dots below, which represent the block and the hanging object, draw and label the forces (not components) that act on the block and the hanging object. Each force must be represented by a distinct arrow starting on, and pointing away from, the appropriate dot. Block . - Hanging Object 9/" O (b) Derive an expression for the mass mH of the hanging object. Express your answer in terms of mg, 6, pk, and physical constants, as appropriate. If you need to draw anything other than what you have shown in part (a) to assist in your solution, use the space below. Do NOT add anything to the figure in part (a). It is determined that m3 = 2.0 kg, 9 = 30, and pk: 0.10. While the block is moving up the ramp and the hanging object is moving downward, the string is suddenly cut. (C) i. Calculate the magnitude of the acceleration of the block immediately after the string is cut. ii. What is the direction of the acceleration of the block immediately after the string is cut? _ Up the ramp Down the ramp No direction, because the acceleration is zero iii. Determine the magnitude of the acceleration of the hanging object immediately a. o o string is cut. Forces 1 Submit X 1 2 3 4) 5