Acceleration of an Object Moving in Circular Path

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SUMMARY

The discussion centers on the acceleration of an object moving in a circular path, specifically addressing the maximum distance a car can cover before slipping on a rough surface. It is established that both tangential acceleration and radial acceleration must be considered together to determine the required friction for maintaining motion. The equation used is f = mv²/r, which relates force, mass, velocity, and radius. Understanding the role of friction in providing both types of acceleration is crucial for accurate calculations.

PREREQUISITES
  • Understanding of circular motion dynamics
  • Knowledge of tangential and radial acceleration concepts
  • Familiarity with the physics of friction
  • Basic proficiency in applying Newton's laws of motion
NEXT STEPS
  • Study the principles of circular motion and centripetal force
  • Learn about the effects of friction on acceleration in different surfaces
  • Explore the derivation and application of the equation f = mv²/r
  • Investigate real-world examples of vehicles navigating circular paths
USEFUL FOR

This discussion is beneficial for physics students, automotive engineers, and anyone interested in understanding the mechanics of vehicles in circular motion and the effects of friction on acceleration.

Robeurer
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TL;DR
What is the acceleration of an object moving in a circular path?
Let's say we have an object moving in a circular path with radius R and rough surface.
We want to know the maximum distance covered by the car before it slip.
Should we use the resultant of both the tangential acceleration and the radial acceleration or just one of them to put in the calculation?

the equation is
##f = \dfrac{mv^2}{r}##
 
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Robeurer said:
TL;DR Summary: What is the acceleration of an object moving in a circular path?

Let's say we have an object moving in a circular path with radius R and rough surface.
We want to know the maximum distance covered by the car before it slip.
Should we use the resultant of both the tangential acceleration and the radial acceleration or just one of them to put in the calculation?

If the force of friction provides radial and tangential acceleration (as it usually does for a car on a flat suface), then you have to use the resultant of both to determine the required friction.
 
Robeurer said:
Let's say we have an object moving in a circular path with radius R and rough surface.
We want to know the maximum distance covered by the car before it slip.
Under what constraints? Is there a time limit? Do we control the throttle setting?

Geometry dictates a maximum distance at a position halfway around the circle. If you can get there.
 
A.T. said:
If the force of friction provides radial and tangential acceleration (as it usually does for a car on a flat suface), then you have to use the resultant of both to determine the required friction.
I don't really understand how the friction provides tangential acceleration but, if it said that the object moving with tangential acceleration, is the object tangential acceleration is the same with the on you mentioned?
 
Robeurer said:
I don't really understand how the friction provides tangential acceleration
Then maybe you should try to understand how cars accelerate in a straight line, before going to circular paths.
 
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jbriggs444 said:
Under what constraints? Is there a time limit?
I also don't understand the part about distance before slip.
 
Robeurer said:
I don't really understand how the friction provides tangential acceleration...
What makes the car increase its forward velocity (show tangential acceleration)?
Could it easily accelerate while spinning its driving wheels on slippery mud?
 

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