runningirl
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Homework Statement
Right after clearing the launch tower, the space shuttle is accelerating upward at 6 m/s/s.
a) Calculate the net force on an 80 kg astronaut during this acceleration.
b) Calculate the force that the seat must exert on the 80 kg astronaut during this acceleration.
c) A few seconds later in the flight, the seat is exerting a force of 2080 N on the astronaut. At what rate is the space shuttle accelerating?
Homework Equations
f=ma
The Attempt at a Solution
for part a, i got 480 N.
for part B, i just added (80*9.8) to 480=1264.
i wasn't sure how to get part c...