Hekp with physics word problem

Physics
Tutor: None Selected Time limit: 1 Day

A 83.9 kg astronaut is working on the engines of a spaceship that is drifting through space with a constant velocity. The astronaut looks at Earth and several seconds later is 33.0 m behind the ship, at restrelative to the spaceship. The only way to return to the ship without a thruster is to throw a wrench directly away from the ship. Thewrench has a mass of 0.485 kg and thrown  with a speed of 16.3m/. How long does it take the astronaut to reach the ship?Answer in units of s

Jun 30th, 2015

Thank you for the opportunity to help you with your question!

using conservation of momentum, the speed of the astronaut is 

V*83.9 + 16.3*.485 =0 

V = 0.0942 m/s 

t = 33/0.0942 = 350.2 seconds

Please let me know if you need any clarification. I'm always happy to answer your questions.
Jun 30th, 2015

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Jun 30th, 2015
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Jun 30th, 2015
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