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    Average Velocity for Certain Objects Moving

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    1) The position versus time for a certain object moving along the x axis is shown. The objects initial position is -3m.

    The graph points since I cannot draw it start at
    (0,-3),(2,9),(3,6),(4,4),(5,4),(6,0),(7,-4) and (9,0).

    a) Find the average velocity in the time interval 0s to 2s in m/s.

    b) Find the average velocity in the time interval 0s to 4s in m/s.

    c) Find the average velocity in the time interval 2s to 4s in m/s.

    d) Find the average velocity in the time interval 4s to 7s in m/s.

    e) Find the average velocity in the time interval 0s to 9s in m/s.

    2) A person takes a trip, driving with a constant speed 98.5 km/h except for a 15.1 min rest stop. If the person's average speed is 67.4 kn/h, how much time is spent on the trip in units of h.

    a) How far does the person travel in units of km?

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    Solution Preview

    Please see attached file

    The position versus time for a certain object moving along the x axis is shown. The objects initial position is -3m.

    The graph points since I cannot draw it start at
    (0,-3),(2,9),(3,6),(4,4),(5,4),(6,0),(7,-4) and (9,0).

    a) Find the average velocity in the time interval 0s to 2s in m/s.
    Distance traveled in 2 seconds = 9+3 = 12 m
    Average velocity = 12/2 = 6 m/s

    b) Find the average velocity in the time interval 0s to 4s in m/s.
    Distance ...

    Solution Summary

    The average velocity for certain objects moving are examined. The interval functions are provided.

    $2.49

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