Answer to Question #979 in Mechanics | Relativity for rissel
a.At what speed does he recoil toward the spaceship?
b.How long must he hold his breath before reaching the ship?
MV = mv
V = mv/M = 3*15/80 = 0.563 m/s;
t = S/v = 10 / 0.563 = 17.78 s.
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