The vertical section of a road over a ca...

The vertical section of a road over a canal bridge in the direction of its length is in the form of circle of radius 8.9 metre. Then the greatest spped at which the car can cross this bridge wihout losing contact with the road at its hgihest point, the centre of gravity of the car being at a height h = 1.1 metre from the ground. Take g = 10 m/sec2-

`5m//sec`

`10m//sec`

`15m//sec`

`20m//sec`

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