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CBSE Class 11-science Answered

find velocity and time
Asked by | 26 Sep, 2013, 08:46: PM
Expert Answer

v2=u2+2as

Here, u=10, g=-9.8, s=-495

v2=102+2(9.8)(495)

v=99ms-1

-495= 10t - 1 (9.8)t2

                 2


        = 10t-4.9t2

4.9t2-10t-495 = 0

   / 9.8

    = 11.12 sec

   

 

Answered by Faiza Lambe | 27 Sep, 2013, 09:45: AM
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