A body is projected up a smooth inclined...

A body is projected up a smooth inclined plane with velocity V from the point A as shown in the figure. The angle of inclination is `45^(@)` and the top is connected to a well of diameter 40m. If the body just manages to across the well, what is the value of V? Length of inclined plane is `20sqrt(2)m`.

`40 " m s"^(-1)`

`40sqrt2" m s"^(-1)`

`20 " m s"^(-1)`

`20sqrt2" m s"^(-1)`

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