Banking of Roads
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Assuming the coefficient of friction between the road and tyres of a car to be 0.5, the maximum speed with which the car can move round a curve of 40.0 m radius without slipping, if the road is unbanked, should be
14m/s
11m/s
25 m/s
19m/s
- 5 sec
- 4 sec
- 3 sec
- 2 sec
- 0.45 Nm−2
- 4.5×10−3 Nm−2
- 2×10−4 Nm−2
- 10−3 Nm−2
- 12 m/s2
- 2 m/s2
- 14 m/s2
- 12.16 m/s2
- 172 m/s
- 124 m/s
- 99 m/s
- 86 m/s
( Take tan 150=0.27, g=10ms−2)
- 18.6 ms−1
- 28.6 ms−1
- 48.6 ms−1
- 38.6 ms−1
- 20 km/hr
- 30 km/hr
- 40 km/hr
- 50 km/hr
- 48 m/s
- 30 m/s
- 17 m/s
- 38.60 m/s
A road is banked such that a vehicle can go in the middle of it with a constant velocity of 40 m/s. What will happen if the velocity is decreased and why?
Imagine friction is not present
None of these
The vehicle will slide down as centripetal force mv2/R has to be constant
The vehicle will slide down as Normal by ground will decrease.
The vehicle slide up as Normal by ground will increase
A curve has a radius of 50 meters and a banking angle of 15º. What is the ideal, or critical, speed (the speed for which no friction is required between the car's tires and the surface) for a car on this curve?
- 7 m/s
- 11 m/s
- 14 m/s
- 16 m/s