Bradley Wiggins cycles 2.5km on a warm up. If the diameter of Bradley’s bike wheel is 68cm, how many times (to the nearest whole rotation) w

Question

Bradley Wiggins cycles 2.5km on a warm up. If the diameter of Bradley’s bike wheel is 68cm, how many times (to the nearest whole rotation) will Bradley’s bike wheel have rotated on this journey?

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Nem 3 weeks 2021-08-23T23:41:39+00:00 1 Answers 0 views 0

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    2021-08-23T23:42:59+00:00

    Answer:

    1171 rotations

    Step-by-step explanation:

    Given that:

    Distance cycled = 2.5km

    Diameter of bike wheel, d = 68cm = 0.68m

    We obtain the Circumference of the bike wheel:

    Circumference, C = πd

    C = 3.14 * 0.68

    C = 2.1352 m

    The number of rotations Bradley’s wheel will make will be :

    Total distance cycled / Circumference

    = (2.5 *1000)m / 2.1352m

    = 2500 / 2.1352

    = 1170.8505

    = 1171 rotations

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