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    qmaster's Avatar
    qmaster Posts: 12, Reputation: 1
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    #1

    Aug 3, 2012, 05:38 AM
    A body falls freely from the top of a tower and it falls 7/16th of the total distance
    A body falls freely from the top of a tower and it falls 7/16th of the total distance in its last second. The time taken by the body for complete motion is….. ans:4 sec pz solve it.
    sujoy060188's Avatar
    sujoy060188 Posts: 1, Reputation: 1
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    #2

    Jan 25, 2013, 11:54 PM
    s=gt^2
    st=(1/2)g(2t-1)

    (7/16)s=(1/2)g(2t-1)
    (7/16)gt^2=(1/2)g(2t-1)

    7t^2-32t+16=0
    (t-4)(7t-4)=0
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