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Physics 132 Midterm Feb/11/08 Name. . .‘ Time allowed 50 minutes. Please answer all questions. You are allowed a 3x5 inch card
of equations. Notelthat questions I, 3 and 4 carry 10 marks while question 2 carries 5
marks. 1) A mass of 120g is hung from a vertical spring and causes the spring to stretch by 10 cm. a)
what is the spring constant? (2pts). Ifthe mass is now displaced 1 cm below the equilibrium
position (take this as y=l cm) and released b) what is the resulting frequency of oscillation? (3pts). c) Write an equation of the form y = A sin(a)t + ¢) that describes the motion of the mass where you can take r=0 as the time when the mass released (note that you must explain how you
decided on which value of {If to use) (4pts). d) At which point (or points) of the motion is the
speed of the mass at its maximum? (lpt) g=9.8m/s2 , 0') F=  RX: M6
4((0/ {m} : one/(3 70,59”an
(«41,516 "(i/:1 r ' i K Ill/71»
b' 'I,r'4g‘.;— 3 ’ﬂ 5
)‘E’ 5m— (N m 942K} (1
(0:qu ra/sec
. 3 ...
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 Winter '08
 Sharpe
 Physics

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