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Find final speed of the astronaut after throwing the tank

  • Thread starter b40677
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  • #1
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A 64.1 kg astronaut is on a space walk when the tether line to the shuttle breaks. The astronaut is able to throw a 11.0 kg oxygen tank in a direction away from the shuttle with a speed of 11.7 m/s propelling the astronaut back to the shuttle. Assuming the astronaut starts from rest, find final speed of the astronaut after throwing the tank. Answer in units of m/s
 

Answers and Replies

  • #2
mezarashi
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What principle do you think you should apply?
 
  • #3
Mk
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b40677 said:
The astronaut is able to throw a 11.0 kg oxygen tank in a direction away from the shuttle with a speed of 11.7 m/s
Damn that's fast! Are you sure its not like 1.17 m/s or is the question just stupid? :biggrin:
 
  • #4
734
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:rolleyes: ok here you go

use: Conservation of momentum

mass of oxygen tank X speed of oxygen tank = mass of astronaut X speed of astronaut
 

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