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Rain is falling vertically at 4 km *h^(-...

Rain is falling vertically at `4 km *h^(-1)` . What will be the apparent velocity and direction of the rain to a man moving horizontally at `3 km *h^(-1)` ?

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The correct Answer is:
`5 km *h^(-1), 36.9^@` with the vertical
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CHHAYA PUBLICATION-VECTOR-PROBLEM SET-I
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