How much must compress the spring

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Q. A package of mass 5 kg sits at the equator of an airless asteroid of mass 7.0 1020 kg and radius 4.5 105 m. We want to launch the package in such a way that it will never come back, and when it is very far from the asteroid it will be traveling with speed 202 m/s. We have a large and powerful spring whose stiffness is 1.3 105 N/m. How much must we compress the spring?

Q. A 380-N, uniform, 1.50-m bar is suspended horizontally by two vertical cables at each end. A small object of weight 520 N is placed distance 0.500 m from the cable A. What is the tension in cable A?

Reference no: EM1349630

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