The roadway bridge over a canal is in the form of an arc of a circle of radius 20 m. What is the minimum speed
with which a car can cross the bridge without leaving
contact with the ground at the highest point (g = 9.8
m/s2
)
(a) 7 m/s (b) 14 m/s
(c) 289 m/s (d) 5 m/s
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