Friction direction in circular motion

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SUMMARY

In circular motion without road banking, friction is the sole force providing centripetal force, acting centrally to maintain the vehicle's circular path. While friction opposes the direction of motion, in this context, it is static friction that prevents skidding, allowing the vehicle to navigate the curve. The discussion clarifies that static friction acts to counter potential relative motion rather than actual motion, which is crucial for understanding how vehicles maintain circular trajectories.

PREREQUISITES
  • Understanding of circular motion dynamics
  • Knowledge of static and dynamic friction
  • Familiarity with centripetal force concepts
  • Basic principles of vehicle motion and handling
NEXT STEPS
  • Research the role of static friction in vehicle dynamics
  • Study centripetal acceleration and its implications in circular motion
  • Explore the effects of road banking on friction and vehicle stability
  • Learn about tire mechanics and their interaction with road surfaces
USEFUL FOR

Physics students, automotive engineers, and anyone interested in the mechanics of vehicle motion and friction in circular paths.

jd12345
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In a circular motion without any banking of road frictional force is the only force causing centripetal force right? But why does it act centrally? Without friction the vehicle will go straight as no centripetal force is present. But frictional always acts opposite to the direction of motion. So it must act opposite to the motion of the vehicle that is backwards and not centrally! Well this suggests there is no central force to make the vehicle move in circular direction. There is only backward force
I think i am missing something. Where am i wrong?
 
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Dynamic friction acts oppositely to the relative motion of the bodies in contact. But here you're dealing with static friction - the wheels are rolling, not skidding. Static friction acts to oppose a potential relative motion, not an actual one.
 

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