A stuntman drives a dirt bike on a curved track....

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Discussion Overview

The discussion revolves around a physics homework problem involving a stuntman driving a dirt bike on a curved track. The problem requires determining the time at which the total acceleration of the bike reaches a specified magnitude, given constant tangential acceleration and the radius of the track.

Discussion Character

  • Homework-related

Main Points Raised

  • The problem states the initial conditions, including radius, tangential acceleration, and total acceleration required.
  • One participant describes their approach to finding centripetal acceleration using the total and tangential acceleration.
  • Another participant requests to see the working for finding centripetal acceleration to provide further assistance.
  • Some participants express difficulty in navigating symbols and suggest attaching a clear image of handwritten work for clarity.

Areas of Agreement / Disagreement

The discussion remains unresolved, as participants have not reached a consensus on the next steps to solve the problem, and there is a lack of clarity in the initial workings presented.

Contextual Notes

Participants have not provided complete mathematical workings, which limits the ability to assist further. There are also unresolved issues regarding the notation used in the problem.

onetimeting
Homework Statement
A stuntman drives a dirt bike on a curved track with a radius of 7.50 m. If he starts from rest and accelerates at 2.35 m/s2, at what time will the magnitude of the total acceleration of the bike be 5.02 m/s2? (Hint: the tangential acceleration will stay constant at 2.35 m/s2.)

initial angular velocity: 0 rad/s
tangential acceleration: 2.35 m/s2 (constant)
radius=7.50 m
total acceleration=5.02 m/s^2

The attempt at a solution

What I have done thus far is find the centripetal acceleration using the total and tangential acceleration. Then I used the centripetal acceleration and the radius to find the velocity. But I am stuck what to do next, do I find alpha, omega? Any help would be very appreciated
 
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Hi onetimeting. :welcome:

Please show your working to find the centripetal accelaration.
 
sorry i was not able to navigate the symbols
 
onetimeting said:
sorry i was not able to navigate the symbols
You can attach a clear image of a neatly handwritten page.

Without seeing your working, we are not able to help further. That is how the homework help works.
 

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