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An aeroplane is moving one kilometer hig...

An aeroplane is moving one kilometer high from west to east horizontally. From a point on the ground due south, the angle of elevation of the aaeroplane is `60^(@)`, and after 10 second, the angle of elevtion of the aeroplane is observed as `30^(@)`, then the speed (in `m//s`) of the aeroplane is

A

`240sqrt3km//hr`

B

`485km//hr`

C

`364km//hr`

D

`523 km//hr`

Text Solution

Verified by Experts

The correct Answer is:
A
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