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A gardener wants to wet the garden witho...

A gardener wants to wet the garden without moving from his place with a water jet whose velocity is `20 ms^(-1)` the maximum area that he can wet `(g=10 m s^(-2))` (in `metre^(2)`)

A

`1600 pi`

B

`40 pi`

C

`400 pi`

D

`200 pi`

Text Solution

Verified by Experts

The correct Answer is:
A
`A= pi R^(2), R=(u^(2))/(g)`
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