a man is standing on a road holds an umbrella at an angle 30° from the vertical. he throws the umbrella and started running with the speed of 10 km/hr then he feels that rain os hitting him

vertically then find the speed of the rain with respect to the running man

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  • here is ur solution:-
    Angle of rain, a = 30 degrees
     
    when the man runs with the speed of 10 km/h he finds that rain falls verically that means that the horizontal component of rain was 10 km/h.
    Vx = 10 km/h
    thus now vertical comppnent of rain is, Vy:
     
    Vx/Vy = tan 30
     
    Vy = 17.32 km/h
    6
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