1.

A plane is flying at a speed of 720kmh^(-1) with respect to air. The wind is blowing at a speed of 54kmh^(-1) from west to east. With respect to ground the plane is found to be movig northwards. In which direction is the plane heading?

Answer»

North-West at ANGLE `sin^(-1)(3/40)` to north
North-West at angle `tan^(-1)(3/40)` to west.
North-East at angle `sin^(-1)(3/40)` to north.
North -East at angle `tan^(-1)(3/40)` to east

Answer :D


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