Question

A person is standing on road by holding an umbrella at right angle to the horizontal surface in order to protect himself from rain falling at 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° south of west. Now by what angle the person has to turn his umbrella in order to protect himself from rain?​

Answer 1

Answer:

North-east 30degree

Explanation:

1. wind is more speed than rain so it go toward South West from North East
2. person change moment vice versa so he or she protected

Answer 2

Answer:

Steps and Understanding :

1) The person has to turn his umbrella in the resultant of velocity of wind which is flowing in horizontal plane and velocity of rain.

Explanation:

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