physics
posted by Tyler
A car travels at a constant speed around a circular track whose radius is 2.66 km. The car goes once around the track in 200 s. What is the magnitude of the centripetal acceleration of the car?

Damon
distance = 2 pi r = 2 pi*2660 meters
speed v = 2 pi 2660/200 meters/s
Ac = v^2/r
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