Homework Help: physics

Posted by Cory on Monday, December 7, 2009 at 9:30am.

An astronaut whose mass is 80. kg carries an empty oxygen tank with a mass of 10. kg. The astronaut throws the tank away with a speed of 2.0 m/s. With what velocity does the astronaut start to move off into space?

physics - bobpursley, Monday, December 7, 2009 at 9:43am
momentum is conserved.

80*V+10(-2)=0
solve for V

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