a jet is approaching a point along the level ground at a constant speed of 60 m/s and at a constant altitude. at t=30, the angle of elevation of the jet is 35° and at t=30 seconds, the angle of elevation is 75°.find the altitude.
Copyright © 2024 EHUB.TIPS team's - All rights reserved.
Answers & Comments
Answer:
verified
Verified by Toppr
REF.Image
tan60
∘
=
x
3000
3
x=
3
3000
3
=3000m
tan30
∘
=
1/
3
3000
3
=9000m
distance covered = 9000- 3000
= 6000 m.
speed =
30
6000
=200m/s