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    zherawati's Avatar
    zherawati Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Apr 17, 2009, 11:31 AM
    Step by step solving
    I need the step by step to solve this problem

    It takes one minute for an elevator to climb 20 floors. Each floor is 3 meters high. What is the average speed of the lift in meters per second?
    letmetellu's Avatar
    letmetellu Posts: 3,151, Reputation: 317
    Ultra Member
    		  
    #2

    Apr 17, 2009, 12:01 PM

    20 floors in one minute equal to 60 seconds,

    1 floor is 3 meters 20 floors equal 60 meters

    So 60 seconds you go 60 meters or 1 meter per second.

    I so hope this is right but I am sure it is not worked the way you are required to solve the problem.
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
    Uber Member
    		  
    #3

    Apr 17, 2009, 09:12 PM

    You can if you explain it properly, and your answer seems fine to me. You can also put it that way:

    Speed = Distance/Time

    Total distance = 20 x 3 = 60 m

    Speed = 60 m/ 1 min = 60m/min

    Convert into m/s = 60 m/ 60 s = 1 m/s
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