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Solution - A Man Walking Briskly in Rain with Speed v Must Slant His Umbrella Forward Making an Angle θ with the Vertical. a Student Derives the Following Relation Between θ And V: Tan θ = V And Checks that the Relation Has a Correct Limit: As V →0, θ → 0, as Expected - Significant Figures

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A man walking briskly in rain with speed must slant his umbrella forward making an angle θ with the vertical. A student derives the following relation between θ and v: tan θ = v and checks that the relation has a correct limit: as v →0, θ → 0, as expected. (We are assuming there is no strong wind and that the rain falls vertically for a stationary man). Do you think this relation can be correct? If not, guess the correct relation.

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