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Posted by on Tuesday, October 26, 2010 at 9:36pm.

A 625-kg racing car completes one lap in 14.3 s around a circular track with a radius of 55.0 m. The car moves at constant speed.
(a) What is the acceleration of the car?

  • physics - , Wednesday, October 27, 2010 at 8:31pm

    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.

  • physics - , Tuesday, February 14, 2012 at 6:33pm

    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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