KinematicsHard
Question
An aeroplane is flying at a uniform speed v m/s at a height h from the ground. If the angle subtended at an observation point on the ground by two positions of the aeroplane t second apart is θ, the height h will be :-
Options
A.
B.
C.
D.
Solution
From the figure
= tan 
MB = PM tan
....(i)But AB = vt = 2 (MB)
∴ MB =
from eqn (i)
∴ PM =
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