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CBSE Class 9 Answered

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Asked by | 14 Sep, 2008, 01:26: PM
answered-by-expert Expert Answer

Let the height of bridge be h.

Using equation of motion,

-h=u(2)-1/2(9.8)t2

h=9.8 m

and v=4.9-9.8(2)=-14.7 ms-1

Answered by | 14 Sep, 2008, 09:00: PM

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