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An automobile tire is rated to last for 50000 miles. To an order of magnitude, through how many revolutions will it turn over its lifetime?

  • Physics -

    If L=2πR ∼ 2 m and s =50000 miles =80467361 m =>
    N =s/L = 80467361/2 = 40233680 rev.

  • Physics -

    What is the estimate to the number of revolutions that a tire will make in 500000 miles?

  • Physics -

    33,613,524

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