If you have swam one lap in a swimming pool, that means you have swam from one end to the other and back. In 1.5 h, a swimmer makes exactly 77 laps in a swimming pool that is 27 m long. Determine the distance the swimmer traveled, the total displacement of the swimmer, the swimmer's average velocity, and the swimmer's average speed.

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  1. Distance = 54m/lap * 77laps = 4158 m.

    Displacement = Df-Do = 0-0 = 0.
    Do = Starting point.
    Df = Final distance from starting point.

    V = D/t = 0/1.5 = 0

    r = d/t = 4158/1.5 = 2772 m/h.=1.73 mi/h

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