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Phys 222/Unit Test 11 Jan 15, 2010 Name: Gruden Serey Solve the problems and answer the questions related to them. Problems are separated by broken lines. Each numbered question is 10 points. Please show your calculations to claim credit for your work A 5kg block is hung on a vertical spring with a spring constant released and left at rest in its new equilibrium position 100 Nim and then slowly 1. How much does the spring stretch until finds its new equilibrium position? 2. If this load is pushed by hand up 2 cm and then suddenly dropped allowing it to oscillate about its equilibrium, what is the angular frequency of its oscillation? 3. What function of time is the vertical displacement of the load given the initial conditions in described above in 2 4. What function of time is the velocity of the load given the initial conditions in 2. 5. What function of time is the acceleration of the load given the initial conditions in 2. 6. What is the maximum elastic potential energy of the load? 7. What is the kinetic energy of the load at the second of the oscillation ?