If an astronaut whose total mass is 100 kg ejects 0.1 kg of gas at a speed of 50 m/s from her propulsion pistol, her recoil speed is

A) 50 m/s.
B) 5.0 m/s.
C) 0.5 m/s.
D) 0.05 m/s.


D

Environmental & Atmospheric Sciences

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