Question

Please help mee!!
the angle of elevation of aeroplane from a point on the ground is 60 degree after a flight of 30 seconds the angle of elevation becomes a height of 3000 root 3 metre find the speed

Answer 1

(Draw diagram based on gives conditions. mark E , D,C  points down and A,B points up.)

Tan 60 = AD/ED
= 1500/ED
ED = 1500
Tan 30 = BC/EC
1/ = 1500√3/EC
DE = EC - ED
4500-1500
= 3000

PLANE TRAVELS 3000 m  in 15 sec.
speed = Dstance/Time
= 3000/15
200 m/s.
Jet plane speed = 200m/s.

Answer 2

Please mark brainliest