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Question 4 (10 points): The cylinder A of radius R has a mass m and the radius of gyration kg = R/2 and rolls without slipping on the horizontal surface. The block B has a mass m. What is the ratio of the kinetic energy of the cylinder Tx and the kinetic energy of the block To? A) TNTB = 3 B) TNT: - 4 C) T/T = 5 D) T/T, = 6 E) Other Question 5 (10 points): The bar has a mass m and length L. The spring attached to its end always remains vertical due to the roller guide, and it is unstretched when 0 - 30° The datum for gravitational potential energy is at position 8 = 0°. What is the system's potential energy at position 6 = 90°? ku? KL B) mol D) E) Other wie mol - MOL c) - 4 8 2 A) - *2?_mgl . 8 4 Page 1/5 150 points 3R R Question 6 (10 points): The double pulley consists of two wheels which are attached to one another and turn at the same rate. If the block A has mass m, and the constant force F-6mg is applied to the rope wrapped around the inner hub of the pulley. What is the magnitude of angular impulse exerted on the system of pulley and block about point o during a time duration of ? A) mgRt B) 2mgRt C) 3mgRt D) 4mg E) Other