- #1
TyroneTheDino
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Homework Statement
An astronaut is pushed from her ship at a velocity of 2m/s. Her weight including her tool belt is 120kg. Remembering Newtons 3rd law, she takes 5 seconds to decide to detach her belt and throw it away from her. The 20kg tool belt leaves her suit as she throws it in front of her 10m/s. If she has 20 minutes of air left in her tank, does she make it?
Homework Equations
Conservation of Momentum
mvi=mvf
Distance
d=vt
The Attempt at a Solution
I say that the astronaut survives.
Because of distance equation= (2)(5)=10m
Her initial momentum is 240kg m/s
And by throwing the belt in front of her she is propelled at -.4m/s
Since she only traveled 10m she would make it back on time.