An astronaut with a mass of 80 kg is floating in space, at rest relative to...
An astronaut with a mass of 80 kg is floating in space, at rest relative to his space station. His jet pack propels him away from the space station with a force of 20 N. How long must the jet pack operate before the astronaut is moving away from the space station at 5 m/s?
Homework Answers
Let the time taken is t.
Given that the mass of the astronaut is m=80 kg.
The force acting on the astronaut is F=20 N.
The acceleration of the astronaut
We know the initial speed of the astronaut is u=0 m/s.
The final velocity of the astronaut v=5 m/s.
We know
The jet pack operate 20 seconds.
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