(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A race car starts from rest on a circular track. the car increases its speed at a constant rate at as it goes once around the track.

2. Relevant equations

Find the angle that the total acceleration of the car makes- with the radius connecting the centre of the track and the car- at the moment the car completes the circle.

3. The attempt at a solution

First I put the angle = [tex]\theta[/tex]

I put the total acceleration = a

and ar= a radial

and then I found that Cos[tex]\theta[/tex]=[tex]\frac{a r }{a}[/tex]

then I said ar=[tex]\frac{v^{2}}{r}[/tex]

and v^{2}=[tex]\frac{2 by r}{T}[/tex] where T is the period. But I stopped I have no numbers

So can any one help me?

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# Homework Help: Problem in mechanics

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