Question

violin doing at an airport pilot made an angle of depression of 30 degree average speed of the plane was 200 km per hour the plant which to the ground after 54 second then the height at which the plane was when it started landing is​

Answer 1

Answer:

I'm not sure if you meant to put 20 degrees but the height at which the plane was when it started landing = 1.026 km

Explanation:

Distance = Speed * time

Distance traveled by plane = 200 *  54/3600   ( 54 sec = 54/3600 hr)

=  3km

Sinθ = perpendicular /hypotenuse

Angle of depression = angle of elevation

Sin20° = Height of Plane when it started landing /Distance Traveled by plane

=> 0.342 = Height of plane when it started landing / 3

=>  Height of plane when it started landing = 3 * 0.342 = 1.026 km

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Answer 2

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