For a man walking horizontally with speed u, rain appears to hit him vertically down. When he makes his speed 'n' times, rain appears to hit him making an angle θ to the vertical. The original speed of rain is

For a man walking horizontally with speed u, rain appears to hit him

1.	For a man walking horizontally with speed u, rain appears to hit him vertically down. When he makes his speed 'n' times, rain appears to hit him making an angle θ to the vertical. The original speed of rain is
Answer» For a man walking horizontally with speed u, rain appears to hit him vertically down. When he makes his speed 'n' times, rain appears to hit him making an angle $θ$ to the vertical. The original speed of rain is

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For a man walking horizontally with speed u, rain appears to hit him vertically down. When he makes his speed 'n' times, rain appears to hit him making an angle θ to the vertical. The original speed of rain is

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