Quiz9b - a 48.0 cm b 24.0 cm c 12.0 cm d 6.00 cm 3 the...

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Physics 53 Quiz #9b Fall 2007 Name ___________________________ Recit. Section _______ Circle the correct answer: [2 points for each part] Consider a mass m attached to a spring with constant k and oscillating on a frictionless horizontal surface. If the displacement of the mass as a function of time t is given by x ( t ) = A cos( ω t + φ ) with A = 6.00 cm, ω = 4 π s -1 , φ = - π /2, then 1. the oscillations start at t = 0 at: a) x = + 6 cm. b) x = + 3 cm. c) x = ! 3 cm. d) x = ! 6 cm. e) x = 0 cm. 2. the total distance traveled by the mass in one cycle is:
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Unformatted text preview: a) 48.0 cm. b) 24.0 cm. c) 12.0 cm. d) 6.00 cm. 3. the period of oscillation is: a) 0.500 s. b) 1.00 s. c) 2.00 s. d) (2/ π ) s. e) ( π /2) s. 4. the maximum speed of the mass m is a) 12 π cm/s. b) 24 π cm/s. c) 36 π cm/s. d) 6.00 cm/s. e) 12.0 cm/s. 5. the kinetic energy of the mass and the potential energy in the spring are equal to each other when a) x = cm. b) x = 4 ! cm. c) x = 4 cm. d) x = + 3 2 cm....
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