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Raindrops are falling vertically with a ...

Raindrops are falling vertically with a velocity `10 m//s`. To a cyclist moving on a straight road the rain drops appear to be coming with a velocity of `20m//s`. The velocity of cyclist is :-

A

10 m/s

B

`10sqrt(3)` m/s

C

20 m/s

D

`20sqrt(3)` m/s

Text Solution

Verified by Experts

The correct Answer is:
2
Figure relation to cyclist is
where R=20 m/s

`=v^(2)=R^(2)-10^(2)`
`rArr v=sqrt(20^(2)+v^(2))=10sqrt(30) m//s`
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