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Properties of Argument

A person is w...

Question

A person is walking on inclined plane with speed v. Rain is falling perpendicular to plane. Find v, so that raindrops appear to fall vertical.

A

\frac{2}{\sqrt{3}}

m/s

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B

2 \sqrt{3}

m/s

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C

6 \sqrt{3}

m/s

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D

\frac{1}{\sqrt{3}}

m/s

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Solution

The correct option is B $2 \sqrt{3}$ m/s

$t a n 30 = \frac{v}{6}$
$v = \frac{6}{\sqrt{3}} = 2 \sqrt{3}$ m/s

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