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A person weighing 560 N is on a spring and rising in a rocket at 4g. If the spring is compressed by .06 m the spring constant has to be determined.
It is assumed that the person weighs 560 N at sea level. This gives the mass of the person as 560/9.8 kg. When the person travels in the rocket his weight is equal to 560*3*9.8. This force would have been exerted on the spring if the spring was stationary and the person was moving. But this is not the case, the acceleration of the person and the spring in the rocket are the same. As a result the net force acting on the spring when the person is on it is equal to 0. The spring is not compressed. The information provided in the question is incorrect. It is not possible to determine the spring constant.
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