Physics Class 11 Chapter 5. Laws of Motion | Page 24

Motion of a car on a level road

N = mg Static friction provides the centripetal acceleration fs =< μsN mv 2 / r =< μsN v 2 =< μsNR / m = μsmgR / m = μsRg v =< √ μsRg This is the maximum speed of a car in circular motion on a level road