1.

A person is s†an ding on road by holding an umbrella at right angle to the horizontal surface in order to protect himself from rain falling at a speed of 10m/s, and where as the velocity of wind is zero. Suddenly wind begins to blow at a speed of 20m/s , towards 30^0 south of west.

Answer» A person is s†an ding on road by holding an umbrella at right angle to the horizontal surface in order to protect himself from rain falling at a speed of 10m/s, and where as the velocity of wind is zero. Suddenly wind begins to blow at a speed of 20m/s , towards 30^0 south of west.


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