ch15-p063 - 63. With M = 1000 kg and m = 82 kg, we adapt...

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2 4 k TM m π ω == + . If d = 4.0 m is the distance traveled (at constant car speed v ) between impulses, then we may write T = v / d , in which case the above equation may be solved for the spring constant: () 2 22 = 4 . 4 vk v kM m dM m d ππ §· ¡ =+ ¨¸ + ©¹ Before the people got out, the equilibrium compression is x i = ( M + 4 m ) g / k , and afterward it is
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