PHYS130 Midterm: PHYS130 Midterm 2009 Fall_with Solution

• School: University of Alberta
• Department: Physics
• Course: PHYS130
• Professor: All

Document Summary

Choose the one alternative that best completes the statement or answers the question. 3: a coin is placed on a platform attached to a spring that oscillates vertically in simple harmonic motion. The amplitude of the displacement is 1. 20 cm. Situation: a 5. 0-kg block is attached to a spring whose force constant is 125 n/m. The block is pulled from its equilibrium position at x = 0 m to a position at x = + 0. 687 m and is released from rest. The block then executes damped oscillation along the x-axis. The damping force is proportional to the velocity. When the block rst returns to x = 0 m, its x-component of velocity is -2. 0 m/s and its x-component of acceleration is + 5. 6 m/s2. The other end of the string is xed and the string is kept under tension.