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A car is moving at 24 km *h^(-1) towards...

A car is moving at `24 km *h^(-1)` towards east and another car is moving north at `18 km *h^(-1)` . Find the relative velocity of the second car with respect to the first.

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The correct Answer is:
`30 km*h^(-1)`, inclined at `theta =tan(4/3)^(-1)` with the west
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