A man swims from a point A on one bank of a river of width 100 m. When he swims perpendicular to the water current he reaches the other bank 50 m downstream. The angle to the bank at which he should swim, to reach the directly opposite point B on the other bank is
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Explanation:
Taking the angle
tan x = 50 /100 =1/2
If the streamer is moving towards north ( to reach the mid point )
Angle made by him = Vw /Vm = 1/2 =sinx
x = 30 degree
or 60 degree from upstream (as per the question )
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Take help of the pic
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