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22 October, 23:09

A person jogs eight complete laps around a quarter-mile track in a total time of 13.1 minutes

A) Calculate the average speed, in m/s

B) Calculate the average velocity, in m/s

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  1. 23 October, 00:06
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    Speed and velocity have the same magnitudes. The only difference is that speed is a scalar quantity and velocity is a vector quantity. In other words, speed is just a magnitude, while velocity is a magnitude with direction. They're essentially the same.

    Let's convert miles to meters and minutes to seconds

    1/4 mile = 402.34 meters (1 mile = 1609 m)

    13.1 minutes = 786 seconds (1 minute = 60 seconds)

    Speed is calculated as distance over time, thus,

    Speed = (402.34 meters) * 8/786 seconds

    a.) Speed = 4.1 m./s

    b.) Velocity = 4.1 m/s
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