A man is traveling at speed of 10.8 kmph in topless car in rainyseason. He holds umbrella at an angle 37degree with vertical to does not wet .if rain is falling vertically find the speed of rain
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Explanation:
if he does not want to wet he wants to hold the umbrella in v rm direction
tan 37 = Vman/vrain
velocity of man = V rain * 3/4
sin 37 = v man / v rm
v man = 10.8*0.6 = 6.48 km/hr
velocity of rain = 8.64 km/hr
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