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Unformatted text preview: lie (el7352) HW13 markert (56480) 1 This printout should have 21 questions. Multiplechoice 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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 Fall '09
 IRENEPOLYCARPOU
 Physics, Mass

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