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CREAMIA GUPTA

· started a discussion

· 1 Months ago

question (Question: 233227.0 )

the answer is 77.940m/s
d=200*1.732
speed = (200*1.732)/90
= 77.940m/s

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)

Anu Rawat

· commented

· 1 Months ago

you have made a calculation mistake

fitness help

· commented

· 1 Months ago

yes it is 77.9

Paramount

· commented

· 1 Months ago

Yet to be approved!
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