physical science

A car travels at a constant speed around a circular track whose radius is 3.5 km.The car goes once around the track in 400 s.What is the magnitude of the centripetal acceleration of the car?

asked by nalim
  1. v^2/r

    v = 2 pi r /T = 2 pi (3500/400)

    v = 55 m/s

    v^2/r = 55^2/3500 = .864 m/s^2

    posted by Damon

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