Calculating Revolutions with Changing Acceleration on a Curve

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Homework Help Overview

The discussion revolves around a physics problem involving a car accelerating on a curved path. The original poster is trying to determine the number of revolutions the car makes while transitioning from one acceleration to another, given specific parameters such as radius and acceleration values.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • The original poster questions whether the acceleration in the problem is tangential and expresses confusion about calculating time, distance, or angle related to the change in acceleration.
  • Another participant mentions having similar issues with a related problem and notes difficulties in obtaining reasonable results from the formulas used.

Discussion Status

The discussion includes a mix of confusion and attempts to clarify the problem. While one participant has indicated they resolved their issue, another is still seeking assistance, suggesting that multiple interpretations of the problem are being explored.

Contextual Notes

There is a suggestion that the original poster's problem may have been resolved, leading to a request for a new thread for another participant's related issue. This indicates a potential overlap in the topics being discussed.

mashawa
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arr, i am so confused, is that tangential accelaration?

Homework Statement


A car starts from rest on a curve with a radius of 110 m and accelerates at 1.20 m/s^2. How many revolutions will the car have gone through when the magnitude of its total acceleration is 2.20 m/s^2?


Homework Equations



theta (final)=theta (initial)+omega*(delta)t+(a*(delta)t^2)/2*r

The Attempt at a Solution



i just have no idea how to figure out the time or the distance (or the angle) it takes the car to get from one acceleration to another...
 
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never mind, realized something and somehow solved it...
 
I am having trouble with a similar problem like this. Any help? I've been using the formulas but I keep getting weird numbers

Thanks
 
feedmeister can you make a new thread please? that way people will know it's your problem since mashawa doesn't need help here anymore.
 

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