A Package Of Mass 7 Kg Sits At The Equator Of An Airless Asteroid Of Mass 3 0e20

A package of mass 7 kg sits at the equator of an airless asteroid of mass 3.0e20 kg and radius 7.5e5 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 235 m/s. We have a large and powerful spring whose stiffness is 2.2e5 N/m. How much must we compress the spring?

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