A huge balloon and its gondola, of mass M, are in the air
Chapter 7, Problem 66(choose chapter or problem)
A huge balloon and its gondola, of mass M, are in the air and stationary with respect to the ground. A passenger, of mass m, then climbs out and slides down a rope with speed v, measured with respect to the balloon. With what speed and direction (relative to Earth) does the balloon then move? What happens if the passenger stops?
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