Q .     A certain vector in the `xy` plane has an `x` component of `4m` and a `y` component is `10m`. It is then rotated in the `xy` plane so that its `x` component is doubled, Then its new `y` component is (approximately) :

EAMCET
A

`20m`

B

`7.2m`

C

`5.0m`

D

`4.5m`

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