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find velocity and time

Asked by 26th September 2013, 8:46 PM
Answered by 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 Expert 27th September 2013, 9:45 AM
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