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An astronaut is in space. His total mass with his equipment is 90kg and his space...

An astronaut is in space. His total mass with his equipment is 90kg and his space shuttle is 3m to the left and is traveling upwards at 4m/s. The astronaut has an airjet that shoots out air at a force of 900N (ignore the airs mass). What direction should the astronaut fire his airjet continuously to meet up with the space shuttle and how long will it take to reach it?

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