Question
Question: The roadway bridge over a canal is in the form of a circular arc of radius 18 m. What is the greates...
The roadway bridge over a canal is in the form of a circular arc of radius 18 m. What is the greatest speed with which a motorcycle can cross the bridge without leaving the ground?
A
18.98 ms-1
B
18/9.8 ms-1
C
9.8 ms-1
D
18×9.8 ms-1
Answer
18×9.8 ms-1
Explanation
Solution
rv2=gorv=rg.