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Assertion A car moves along a road with...

Assertion A car moves along a road with uniform speed. The path of car lies in vertical plane and shown in fighre. The radius of curvature (R) of the path is same everywhere. If the car does not loose contact with road at the highest point, it can travel the shown path without loosing contact with road anywhere else.
Reason For car to loose contact with road, the normal reaction between car and road should be zero.

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