Solveeit Logo

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\sqrt{9.8} ms-1

D

18×9.8\sqrt{18 \times 9.8} ms-1

Answer

18×9.8\sqrt{18 \times 9.8} ms-1

Explanation

Solution

v2r=gorv=rg\frac{v^{2}}{r} = gorv = \sqrt{rg}.