A fly-over bridge is a part of a vertical circle of radius 80m and a vehicle is travelling on it. The vehicle does not leave the surface of bridge at its highest point, if maximum speed of vehicle is:
28m/s
21m/s
14m/s
42m/s
A
21m/s
B
28m/s
C
14m/s
D
42m/s
Open in App
Solution
Verified by Toppr
For the vehicle not to leave the surface, it has to travel with critical velocity. So, v=√gR =√9.8×80 =√784 or, v=28ms−1
Was this answer helpful?
0
Similar Questions
Q1
A fly-over bridge is a part of a vertical circle of radius 80m and a vehicle is travelling on it. The vehicle does not leave the surface of bridge at its highest point, if maximum speed of vehicle is:
View Solution
Q2
A vehicle is travelling at uniform speed 36kmph along a fly-over bridge and a person of mass 50kg in the vehicle experiences a normal reaction 390N as the vehicle crosses the highest point. The radius of curvature of the fly-over bridge is:
View Solution
Q3
What is the maximum speed with which a vehicle can negotiate a convex bridge of radius 10m without leaving the surface of the road.
(Take g=10m/s2)
View Solution
Q4
What is the maximum speed with which a vehicle can negotiate a convex bridge of radius 10m without leaving the surface of the road. (Take g=10m/s2)
View Solution
Q5
A vehicle is travelling along concave road then along convex road of same radius of curvatures at uniform speed. If the normal reactions on the vehicle as it crosses the lowest point of concave surface, highest point of convex surface are 1.5×104N,0.3×103N respectively, the mass of vehicle is: (g=10m/s2)