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A car at the Indianapolis-500 accelerates uniformly from the pit area, going from rest to 320 km/h in a semicircular arc with a radius of 192 m.

Determine the tangential acceleration of the car when it is halfway through the turn, assuming constant acceleration.

m/s^2(tangent to the path)

(I know that the equation is equal to mv2/r but how do i set it up. what is the difference between tangent and toward the center.)

Determine the radial acceleration at this time.

m/s^2 (toward the center of the path)

(It is rev/sec and multiply. i got 3.7m/s^2)

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?

(mu=fN I got all these other formulas and forces on the car and put them together, and i got .48 but it's wrong)

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# Homework Help: Work help i'm stuck and about to kill myself

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