The roadway bridge over a canal is the f...

The roadway bridge over a canal is the form of an arc of a circle of radius 20 m. What is the minimum speed with which a car can cross the bridge without leaving contact with the ground at the highest point (g = 9.8 m/s2

`7 m//s`

`14 m//s`

`289 m//s`

`5 m//s`

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