I just dont get this tangential acceleration problem

AI Thread Summary
The discussion revolves around a physics problem involving a car accelerating uniformly at the Indianapolis 500. The key points include the need to calculate tangential acceleration, radial acceleration, and the coefficient of static friction for a flat curve. The poster struggles with the lack of time information and the relationship between tangential acceleration and radians. The complete problem requires determining these values while assuming constant tangential acceleration. Understanding the relationship between velocity, radius, and acceleration is crucial to solving the problem effectively.
anightlikethis
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Homework Statement [/b]
A car at the Indianapolis-500 accelerates uniformly from the pit area, going from rest to

I can't get very far on this one. I know that tangential acceleration= change in velocity over change in time, but there is no time mentioned. I know it has something to do with radians but I don't remember that from trig.
 
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anightlikethis said:
Homework Statement [/b]
A car at the Indianapolis-500 accelerates uniformly from the pit area, going from rest to

I can't get very far on this one. I know that tangential acceleration= change in velocity over change in time, but there is no time mentioned. I know it has something to do with radians but I don't remember that from trig.

What is the entire question?
 
OOPS ...sorrry
here it is
A car at the Indianapolis-500 accelerates uniformly from the pit area, going from rest to 300 km/h in a semicircular arc with a radius of 200 m.
Determine the tangential acceleration of the car when it is halfway through the turn, assuming constant tangential acceleration.
Determine the radial acceleration of the car at this time.
If the curve were flat, what would the coefficient of static friction have to be between the tires and the roadbed to provide this acceleration with no slipping or skidding?
 

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