A firecracker is fired and it rises to a height of 1000 m. Find the (i) velocity by which it was released. (ii) time taken by it to reach the highest point. (Take, g = 9.8 m/s2)
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Answer:
h=u^2/2g
Explanation:
take 3rd equation and solve (v^2-u^2=2as)
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(i)- velocity = 140m/s
(ii)- Time = 14.28s
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