Science
posted by Please help me. .
An astronaut on a space walk bumps the shuttle and starts moving away at a velocity of 0.02m/s. The astronauts mass is 100kg. He has takes a 1kg "safety week" and shoves it away in exactly the direction of his motion at a speed of 6m/s. What speed does the astronaut move back toward the space shuttle?

conservation of momentum
initial momentum=sum final momentums
100(0.02)=1(6)+99(V) solve for V. 
what is the final answer? :(
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