1. Two mass-spring systems vibrate with SHM. If the spring constants are equal and the mass of one system is twice of the other , which system has a greater period? 2. Which of these periodic motion motions are SHM ? a. A child swinging on a playground swing ( angle = 45 degree) b. A CD rotating in a player c. An oscillation clock pendulum ( angle= 10 degree) 3. a) A slingshot consists of a light leather cup attached between two rubber bands. If it takes a force of 32 N to stretch the bands 1.2 cm, what is the equivalent spring constant of the rubber bands? How much force is required to pull the cup of the slingshot 3.0 cm from the equilibrium position? 4. A1.0kgmassonaspringisstretchedandreleased.Theperiodofoscillationismeasuredto be 0.46 s. What is the spring constant? 5. What would be the period of a pendulum that is 1.0 m long? 6. Imagine you could travel to the moon where the acceleration due to gravity is 1.6 m/s2. What would be the period of a pendulum that is 1.0 m? 7. The drawing shows the harmonic motion of a mass on a spring at the extremes of its motion. The middle drawing shows the midpoint of travel. Indicate on the drawing (a) the points of greatest and least velocity, (b) the points of greatest and least acceleration, (c) the points of greatest and least potential E and kinetic E. 8. A 355 g mass is attached to a spring (k = 435 N/m). If the system is allowed to oscillate on a frictionless surface, what is the period and frequency of the motion? 9. You are designing a pendulum clock escapement. You have determined that the pendulum must have a period of 0.500 s. What should be the length of the thing? 10. a) A load of 45 N is attached to a spring that is hanging vertically. The spring is stretched 0.14 m from its equilibrium position. What is the spring constant? b) If a 60 N weight is used instead, what would you expect the spring stretch to be instead? 11. Ifaspringconstantis40N/mandanobjecthangingfromitstretchesit0.50m,whatisthe mass of the object