Posted by rachel on Tuesday, October 26, 2010 at 9:36pm.
d = 2pi*r,
d = 6.28*55 = 345.6m = Linear distance,
d = 0.5*at^2 = 345.6 m,
0.5a*(14.3)^2 = 345.6,
102.2a = 345.6,
a = 345.6 / 102.2 = 3.38 m/s^2.
A 615 kg racing car completes one lap in 14.3 s around a circular track with a radius of 40.0 m. The car moves at constant speed.
(a) What is the acceleration of the car?
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