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JEEMAIN and NEET
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Physics
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Class11
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Motion in a Plane
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Q)
To a man walking at the rate of 3 km/hr the rain appears to fall vertically. When he increases the speed to 6 km/hr it appears to meet him at an angle of $45^{\circ}$ with vertical. Find the speed of rain.
\[(a)\;3 km/hr\quad (b)\;\frac{3}{\sqrt 2} km/hr \quad (c)\;5km/hr \quad (d)\;3 \sqrt 2 km/hr\]
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