Rotating objects in non-inertial frames

  • Thread starter Thread starter frenchyc
  • Start date Start date
  • Tags Tags
    Frames Rotating
Click For Summary
SUMMARY

The discussion focuses on the forces acting on an astronaut inside a rotating donut-shaped space station, specifically analyzing the scenario from both inertial and non-inertial frames. In the non-inertial frame of the space station, the astronaut experiences centripetal force and the normal force exerted by the station. In contrast, when viewed from an inertial frame, the analysis requires applying Newton's 2nd law to account for the effects of rotation and the resulting fictitious forces. Understanding these dynamics is crucial for comprehending motion in rotating reference frames.

PREREQUISITES
  • Understanding of Newton's 2nd law of motion
  • Familiarity with concepts of inertial and non-inertial frames
  • Basic knowledge of centripetal force
  • Concept of fictitious forces in rotating systems
NEXT STEPS
  • Study the application of Newton's 2nd law in non-inertial frames
  • Research the effects of fictitious forces in rotating reference frames
  • Explore centripetal force calculations in rotating systems
  • Investigate real-world applications of rotational dynamics in space environments
USEFUL FOR

Physics students, aerospace engineers, and anyone interested in the dynamics of rotating systems and their implications in space environments.

frenchyc
Messages
4
Reaction score
0
So the homework question is this. In a donut shaped space station that is rotating, what is the force on an astronaut inside the space station (he is on the outside) in both an inertial frame, and the frame of the space station.

Intuitively in the frame of the space station the two forces are a)The centripetal force and b) the normal force of the space station.

However when i try to think of the forces on the astronaut in a inertial frame my mind goes blank. Any ideas?
 
Physics news on Phys.org
Newton's 2nd law.
 

Similar threads

Calculate center of rotation of monocopter
  • · Replies 17 ·
Replies
17
Views
2K
Problem 9.2 Classical Mechanics: Astronaut in a rotating space station
  • · Replies 1 ·
Replies
1
Views
3K
Torque about an accelerating point
  • · Replies 5 ·
Replies
5
Views
3K
Conservation of momentum and mechanical energy on an inclined plane
  • · Replies 19 ·
Replies
19
Views
3K
Acceleration acting on a block lying on a wedge (non-inertial frame)
  • · Replies 3 ·
Replies
3
Views
2K
Centripetal Force / circular motion question
  • · Replies 7 ·
Replies
7
Views
4K
What is the force behind artificial gravity in rotating space stations?
  • · Replies 1 ·
Replies
1
Views
2K
Non-inertial Frames of Reference
  • · Replies 44 ·
2
Replies
44
Views
6K
2 astronauts near a space station (no rotation)
  • · Replies 1 ·
Replies
1
Views
2K
Centrifugal acceleration in rotating frame
  • · Replies 3 ·
Replies
3
Views
2K