Physics, 04.08.2019 07:30, lazarus10

An astronaut is wearing a jet pack on a space walk. including the jet pack, he has a mass of 90 kilograms. initially, he is not moving with respect to the spaceship nearby. if the astronaut fires 0.06 kilograms of gas from his thruster at a speed of 700 meters per second, what will his speed be after the firing? a. 0.32 meters/second b. 0.47 meters/second c. 4.7 meters/second d. 42 meters/ second

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An astronaut is wearing a jet pack on a space walk. including the jet pack, he has a mass of 90 kilo...