Question

11. Rain is falling vertically with a speed of 35 m/s. Wind starts blowing after some time with a
speed of 12 m/s in east to west direction in which direction should a boy waiting at a bus stop
hold his umbrella?
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Answer 1

Answer:

tan ⁻¹ (12/35) = 18.92 deg. The umbrella should be pointed in the direction opposite to the resultant velocity of the rain drops. So it should be in the direction 18.92 deg. inclination to the vertical opposite to the direction of wind., towards East.