1.

A motorist travelling due north with a velocity of Ukmph, turns a corner and then travels due west with a velocity of Vkmph. He observer on turning the corner that in directions it seems now to come from exactly the opposite point of the compas to when he was travelling north. The true direction of wind and its true velocity are tan^(-1)((pu)/(v)) and q/2 sqrt(V^(2)+U^(2)) kmph. The value of p and q are

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