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38 votes
(V. An aeroplane is flying parallel to the Earth's surface at a speed of 175 m/sec and at a height of 600 m. The angle of elevation of the aeroplane from a point on the Earth's surface is 37°. After what period of time does the angle of elevation increase to 53° ? (tan 53° = 1.3270, tan 37° = 0.7536) ​

User Berk
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1 Answer

22 votes
22 votes

dot on top of earth = plane position at the time of observation (right one when 37°, left one 53°)

then the geometry is zoomed on the left side

(V. An aeroplane is flying parallel to the Earth's surface at a speed of 175 m/sec-example-1
User Nirav Ranpara
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