Mathematics, 31.01.2022 14:00 fxllsxn
1.The angle of elevation of a jet plane from a point R on the ground is 60°. After a flight of
17 seconds, the angle of elevation changes
to 30°. If the jet plane is flying at a constant height of 1700√3 metres, find the speed of
the jet plane in km per hour.
(ans: 720km/hr)
Answers: 2
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1.The angle of elevation of a jet plane from a point R on the ground is 60°. After a flight of
17...
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