When the instrument is landed on mars the spring extends

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An instrument to measure the acc. of gravity on Mars is made of a spring from which hangs a mass of 0.24 kg. At a place on earth where gravity is 9.80 m/sec^2, the spring extends 0.61 cm. When the instrument is landed on Mars, the spring extends 0.20 cm. What is the Martian acc. of gravity? Also what is Hooke's Law?

Reference no: EM13636698

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