A motorboat embarks on a trip, heading downstream in a river in which the current flows at a rate of 1.5m/s. After 30.0 minutes, the boat ha

Question

A motorboat embarks on a trip, heading downstream in a river in which the current flows at a rate of 1.5m/s. After 30.0 minutes, the boat has traveled a distance of 24.3 km downstream. How long will it take the boat to travel upstream to its original point of embarkation

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Tryphena 5 years 2021-07-18T21:39:20+00:00 1 Answers 22 views 0

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  1. MichaelMet
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    2021-07-18T21:40:55+00:00
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    Answer:

    t=2413s

    Explanation:

    From the question we are told that:

    Velocity v=1.5m/s

    Time t=30min=>30*60=>1800

    Distance d=24.3km

    Generally the Newton’s equation for Speed going down the stream is mathematically given by

     v + u = \frac{d}{t}

     1.5+v=frac{24300}{1800}

     v=12m/s

    Therefore

     v + u = \frac{d}{t}

     t=\frac{24300}{12-1.5}

     t=2413s

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