Find Tangential Component of Acceleration and Curvature

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SUMMARY

The discussion focuses on calculating the tangential component of acceleration and its relationship with curvature in motion. Participants clarify that tangential acceleration is defined as the rate of change of speed, not merely the change in speed itself. The conversation emphasizes the importance of understanding the distinction between tangential speed and tangential acceleration, particularly in the context of a particle moving along a curved path. The relationship between tangential acceleration and the geometry of the path is also highlighted, indicating that the nature of the path does not affect the calculation of tangential acceleration.

PREREQUISITES
  • Understanding of tangential acceleration and its definition
  • Familiarity with centripetal acceleration and its formula, v²/r
  • Knowledge of angular velocity (omega) and its relationship to linear velocity
  • Basic principles of one-dimensional kinematics
NEXT STEPS
  • Study the relationship between tangential acceleration and angular velocity in circular motion
  • Learn how to apply one-dimensional kinematics to curved paths
  • Explore the derivation of tangential and centripetal acceleration equations
  • Investigate the effects of varying radius on tangential acceleration in circular motion
USEFUL FOR

Students and educators in physics, particularly those focusing on dynamics and motion, as well as engineers and professionals involved in mechanical design and analysis of moving systems.

CGI
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Homework Statement


upload_2016-1-25_12-12-24.png


Homework Equations


I know that the tangential accel is v = wr
and that Centripetal = v^2/r

The Attempt at a Solution


For A, I thought it would be straight forward if I had the radius as well as omega. I know that the distance
between A and B is 60in, but I don't think it would be safe to assume that r = 60 or half of that would it?
For B, I'm not quite sure how to go about it unfortunately :cry:
 
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CGI said:
I know that the tangential accel is v = wr
Note that you wrote an equation for speed and claimed that it is an equation for tangential acceleration.

For part (a) you need to know the relationship between the tangential component of acceleration and how the speed is changing.
 
Oh wow I read that wrong. That was the tangential speed. Not acceleration.

Hmm.. Okay. Well I know that at B, the velocity was only half of A's.

I think Tangential Acceleration is the change in speed of a particle so in this case, 1/2..

Is that correct?
 
Tangential acceleration is not the change in speed. It is the rate at which the speed is changing.

As far as tangential acceleration is concerned, it makes no difference whether the road is sinuous or straight. Thus, if you imagined the curvy road straightened out to a make a straight line, the change in speed from one end to the other would be the same if the tangential acceleration on the curvy road is the same as the acceleration along the straight line. Thus, you can use what you know about one-dimensional kinematics to help you solve part (a).
 

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