To a driver going east in a car with a v...

To a driver going east in a car with a velocity of `40 km h^(-1)`, a bus appears to move towards north with a velocity of `40 sqrt(3)km h^(-1)`. What is the actual velocity and direction of motion of the bus ?

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The correct Answer is:

`80 km h^(-1), 30^(@)` east of north

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