Circular Motion on a Track: Understanding Force and Direction

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SUMMARY

In circular motion along a quarter-circle track, starting at 180 degrees (9 o'clock) and ending at 270 degrees (6 o'clock), the total force acting on an object dropped from the start is directed towards the center of the circle. This centripetal force is constant and does not align with the direction of motion at all angles. As the object moves along the track, the direction of the velocity changes, but the centripetal force remains perpendicular to the velocity vector, ensuring the object follows the circular path without external forces or friction.

PREREQUISITES
  • Understanding of centripetal force in circular motion
  • Knowledge of vector components in physics
  • Familiarity with angular displacement and degrees
  • Basic principles of Newton's laws of motion
NEXT STEPS
  • Study the concept of centripetal acceleration in circular motion
  • Learn about the mathematical formulation of circular motion dynamics
  • Explore the effects of friction on circular motion
  • Investigate real-world applications of circular motion in engineering
USEFUL FOR

Physics students, educators, and anyone interested in the principles of motion and forces in circular trajectories will benefit from this discussion.

devanlevin
in circular motion, on a track, which is exactly a quarter of a circle, starting at 180 degrees(9 0 clock) and ending at 270(6 o clock) what is the direction of the total force working on an object dropped from the start at 180? no external forces, friction etc... is it always with the direction of motion or does it differ at different angles??
 
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Hi devanlevin,

devanlevin said:
in circular motion, on a track, which is exactly a quarter of a circle, starting at 180 degrees(9 0 clock) and ending at 270(6 o clock) what is the direction of the total force working on an object dropped from the start at 180? no external forces, friction etc... is it always with the direction of motion or does it differ at different angles??

You mentioned some forces that are not acting, but what forces are there that are acting on the object?
 

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