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Questions  >>  JEEMAIN and NEET  >>  Physics  >>  Class11  >>  Motion in a Plane
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Q)

A man crosses the river in shortest time at an angle $\theta=60 ^{\circ}$ to the direction of flow of water. If the speed of water is $v_w=4\; km/hr$ find the speed of man.

\[(a)\;6km/hr \quad (b)\;10km/hr \quad (c)\;12km/hr \quad (d)\;8 km/hr\]

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