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When a mass is far away from the moon it has a speed 3.2 times its...

When a mass is far away from the moon it has a speed 3.2 times its escape velocity from the moon. With what speed in metres per second must the object have be launched from the surface of the moon? (Mmoon = 7.36 X 1022 kg; Rmoon = 1.74 X 106 kg)

The answer is 7970 m/s. Consider initial and final energy conditions

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