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3 October, 13:51

A pronghorn antelope has been observed to run with a top speed of 97 km/h. Suppose an antelope runs 1.5 km with an average speed of 85 km/h, and then runs 0.80 km with an average speed of 67 km/h. How long will it take the antelope to run the entire 2.3 km?

Can you guys Explain this in the most detail possible, I'd really appreciate it.

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  1. 3 October, 17:08
    0
    0.030 hours

    First part of run

    d = 1.5 km

    s = 85 km/h

    t = d / s = 1.5/85

    t1 = 0.017647 hours

    Second part of run

    d = 0.80 km

    s = 67 km/h

    t = d / s = 0.80/67

    t2 = 0.011940 hours

    t1 + t2 = 0.017647 + 0.011940

    = 0.030 â„Žours
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