The maximum speed of a car on a road–turn of radius 30 m, if the coefficient of friction between the tyres and the road is 0.4, will be
10.84 m/sec
9.84 m/sec
8.84 m/sec
6.84 m/sec
v=√μrg=√0.4×30×9.8=10.84 m/s
The maximum speed at which a car can turn round a curve of 40 m radius on a level road is: (Given: coefficient of friction between the tyres and road is 0.5)