Marge asked in SportsRunning · 1 month ago

Calculate average speed of runner for a 400m race in 44.40 s?

2 Answers

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  • .
    Lv 7
    1 month ago

    If you relocate your question to an appropriate subcategory, there are users who can help you learn to set up word problems so you can figure them out (such as Jogger did below). Spoon feeding answers to homework questions doesn't help students learn, and could leave them in the lurch at test time. Its worth learning how to decipher a problem so you can work through it yourself (it'll come up in life, outside of school).

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    Your question belongs in Education & Reference>Homework Help OR Science & Mathematics>Mathematics as it's currently in Sports>Running and not as applicable to this subcategory (and thus decreases your chances of getting many useful answers).

    Moving your question can be done by clicking Edit (pencil icon for mobile)>Edit category just beneath your question, then selecting the category that's appropriate for the topic.

  • 1 month ago

    I don't like to give direct answers to homework questions.  Students are given homework to help them be trained in how to think about problems.

    Runners have two common ways of measuring how fast someone is moving: Speed and Pace. Speed is distance divided by time. Pace is time divided by distance. 

    Examples of speed measurements: Kilometers per hour, meters per second, miles per hour, yards per second.  For runners, the two most common pace measurements are (minutes:seconds) / mile or (minutes:seconds) / kilometer.  Example: George ran a half-marathon at a 7:05 pace (i.e., 7 minutes and 5 seconds per mile).

    You want a speed measurement. You have a distance of 400 meters, and a time of 44.40 seconds. Division will give you a speed measurement in meters / second. 

    If you need speed in something other than meters / second, you'll have to convert. 

    By the way, a good place for questions like this is the Education & Reference > Homework Help category. You should consider moving your question there for better answers. 

    An alternative is to ask your teacher. It's better for you and your teacher. Another good source of help is your classmates.

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