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abhirna sundar

· started a discussion

· 1 Months ago

option A is also a possible solution (Question: 491647.0 )

option A is also a possible solution

Question:

The angle of elevation of an aeroplane from a point on the ground is 60o. After 30 seconds flight, the elevation changes to 30o. If the aeroplane is flying at a height of  15003    m, find the speed of the aeroplane.

Options:
A)

200 m/sec

B)

100 m/sec

C)

150 m/sec

D)

300 m/sec

Solution:

 Ans: (b)


  


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