On a day rain is falling vertically. A boy cycling on the road finds rain falling at an angle 30° with vertical relative to him when moves with speed v 1 . On increasing speed to v 2 rain falls at

Question

On a day rain is falling vertically. A boy cycling on the road finds rain falling at an angle 30° with vertical relative to him when moves with speed $v_{1}$ . On increasing speed to $v_{2}$ rain falls at an angle $6 0^{\circ}$ with vertical relative to him. Find $\frac{v _{2}}{v _{1}}$ .

Answer:

3.00

Solution:

$tan 3 0^{\circ} = \frac{v _{1}}{v _{R}} & tan 6 0^{\circ} = \frac{v _{2}}{v _{R}} \Rightarrow \frac{v _{2}}{v _{1}} = 3$

TestHub · Accepted Answer

tan 3 0 ∘ = v R ​ v 1 ​ ​ & tan 6 0 ∘ = v R ​ v 2 ​ ​ ⇒ v 1 ​ v 2 ​ ​ = 3

Physics - Kinematics Question with Solution | TestHub

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