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    originalorigina's Avatar
    originalorigina Posts: 1, Reputation: 1
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    #1

    Oct 19, 2012, 11:37 PM
    How to find average speed with the velocity and time?
    The lawnmower moved at a constant speed of 2 m/s for 60 seconds and at 1 m/s for 120 seconds.

    Determine the average speed of the lawnmower.
    retina111's Avatar
    retina111 Posts: 10, Reputation: 1
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    #2

    Oct 28, 2012, 06:41 AM
    The average speed = Total distance / Total time

    Total distance = (2*60)+(1*120) = 240m
    Total time = 60 seconds + 120 seconds = 180 seconds
    therefore, average speed = 240/ 180 = 1.33 m/s
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