SOLUTION: A 200.0 kg astronaut and equipment move with a velocity of 2.00 m/s toward an orbiting spacecraft. How long must the astronaut fire a 100.0 N rocket backpack to stop the motion rel
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Question 1119771: A 200.0 kg astronaut and equipment move with a velocity of 2.00 m/s toward an orbiting spacecraft. How long must the astronaut fire a 100.0 N rocket backpack to stop the motion relative to the spacecraft? Answer by ikleyn(52786) (Show Source):
The mass is m = 200.0 kg
The velocity is v = 2.00 m/s.
The force to decelerate is F = 100 N.
The time "t" to stop is Ft = mv, ( <<<---=== the momentum/impulse conservation law)
which gives t = = = 2*2 = 4 seconds.
