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# HW 13 - lie(el7352 – HW13 – markert –(56480 1 This...

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Unformatted text preview: lie (el7352) – HW13 – markert – (56480) 1 This print-out should have 21 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0 points An ideal massless spring is fixed to the wall at one end, as shown below. A block of mass M attached to the other end of the spring oscillates with amplitude A on a frictionless, horizontal surface. The maximum speed of the block is v m . m k- A + A v m What is the force constant k of the spring? 1. k = mv 2 m 2 A 2 2. k = mg v m 2 A 3. k = mv 2 m 2 A 4. k = mg A 5. k = mv 2 m A 2 002 (part 1 of 3) 10.0 points A block of unknown mass is attached to a spring of spring constant 4 . 9 N / m and under- goes simple harmonic motion with an ampli- tude of 8 . 6 cm. When the mass is halfway between its equilibrium position and the end- point, its speed is measured to be 26 . 5 cm / s. Calculate the mass of the block. Answer in units of kg. 003 (part 2 of 3) 10.0 points Find the period of the motion. Answer in units of s. 004 (part 3 of 3) 10.0 points Calculate the maximum acceleration of the block. Answer in units of m / s 2 . 005 10.0 points The displacement in simple harmonic motion is maximum when the 1. kinetic energy is a maximum....
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HW 13 - lie(el7352 – HW13 – markert –(56480 1 This...

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