A ring and a disc is released from rest from the top of an inclin plane at the same height and they roll down without slipping. Which one reaches the botto first? The ring has a moment of inertia of Iring = MR, whereas a disc has a moment of inertia of Idisk MR. Assume that the radii of the objects are small compared to the height of the incline and they have uniform masses. A It depends on the masses of the disc and the ring B The disc arrives first. CIt depends on the diameters of the ring and the disc. D They reach the bottom at the same time. E The ring arrives first. Following three questions (Q2 to Q4) should be solved based on the information given below. ww Question 2 A block of mass m = 7.5kg is pushed against a spring, compressing it by z=1.03m on a horizontal frictionless plane and then released from rest. The mass is not attached to the spring and the spring constant is k=231 N/m. At the end of the horizontal plane, there is an inclined plane with friction with a coefficient of kinetic and static frictions = 0.23 and #= 0.56. The angle of the inclination is given to be 8 = 41 and the height of the horizontal plane from the bottom of the incline is h=8.5m. Please take the gravitational acceleration as g = 9.81 m/s. (4 points) Is the mechanical energy conserved between the instant the mass is released and the instant it reaches the bottom of the incline. Question 3 A Yes, it is conserved. (8 points) How much work is done by friction? B No, it is not conserved. Question 4 plane? (8 points) What is the speed of the block when it reaches the bottom of the inclined Following four questions (Q5 to Q8) should be solved based on the information given below.