Calculate the net force of space shuttle

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SUMMARY

The discussion focuses on calculating the net force acting on an astronaut during the acceleration of a space shuttle. Using Newton's second law, the net force on an 80 kg astronaut accelerating at 6 m/s² is determined to be 480 N. The force exerted by the seat on the astronaut, accounting for gravitational force, totals 1264 N. Additionally, when the seat exerts a force of 2080 N, the acceleration of the shuttle can be calculated using the net force equation.

PREREQUISITES
  • Understanding of Newton's second law (f=ma)
  • Basic knowledge of gravitational force (weight calculation)
  • Ability to perform unit conversions and calculations involving forces
  • Familiarity with concepts of acceleration in physics
NEXT STEPS
  • Study the application of Newton's laws in varying contexts
  • Learn about calculating forces in non-inertial reference frames
  • Explore the concept of net force and its implications in real-world scenarios
  • Investigate the dynamics of space shuttle launches and astronaut safety measures
USEFUL FOR

Students studying physics, educators teaching mechanics, and aerospace engineers interested in the dynamics of space travel and astronaut safety.

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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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What's the net force on the astronaut? What's his acceleration?
 

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