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prahlad choudhary

· started a discussion

· 1 Months ago

wright answer (Question: 233227.0 )

3.8488... is wright answer

Question:
A balloon leaves the earth at point A and rises at a uniform velocity. At the end of \(1\cfrac{1}{2}\) min. an observer situated at a distance of 200 m from A, finds the angular elevation of  the balloon to be 60ยบ. Find the speed of the balloon
Options:
A) 3.87 m/sec.
B) 7.74 m/sec.
C) 3.78 m/sec.
D) 7.56 m/sec. 
Solution:

Ans: (a)

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