When a man is standing, rain drops appea...

When a man is standing, rain drops appear to him falling at 60° from the horizontal from his front side. When he is travelling at 5kmph on a horizontal road they appear to him falling at 30°, from the horizontal from his front side. The actual speed of the rain is (in km per hour)

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When a man is standing, rain drops appear to him falling at 60° from the horizontal from his front side. When he is travelling at 5kmph on a horizontal road they appear to him falling at 30°, from the horizontal from his front side. The actual speed of the rain is (in km per hour)

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