Calculate the net force of space shuttle

AI Thread Summary
The discussion focuses on calculating the net force on an 80 kg astronaut during the space shuttle's upward acceleration of 6 m/s². For part a, the net force is determined to be 480 N. In part b, the force exerted by the seat on the astronaut is calculated to be 1264 N by adding the gravitational force to the net force. Part c poses a challenge, as the force exerted by the seat is given as 2080 N, prompting questions about the astronaut's net force and acceleration. The calculations highlight the application of Newton's second law in understanding forces during space shuttle launch.
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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...
 
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