Wrench Shipping
Wrench Shipping
someone please help me out with this momentum?
A 83.5 kg astronaut is working on the en-
gines of a spaceship that is drifting through
space with a constant velocity. The astronaut
turns away to look at Earth and several sec-
onds later is 35.5 m behind the ship, at rest
relative to the spaceship. The only way to re-
turn to the ship without a thruster is to throw
a wrench directly away from the ship. The
wrench has a mass of 0.599 kg, and the astro-
naut throws the wrench with a speed of 21.6
m/s.
How long does it take the astronaut to reach
the ship?
Answer in units of s.
m1v1=m2v2
0.599(21.6)=83.5(v2)
v2=0.599(21.6)/83.5
m/s=0.155
35.5/0.155=s
s=229s
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