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A vehicle is travelling with uniform spe...

A vehicle is travelling with uniform speed along a concave road of radius of curvature `19.6m`. At lowest point of concave road is the normal reaction on the vehicle is three times its weight, the speed of vehicle is

A

`4.9 m//s`

B

`9.8 m//s`

C

`14.7 m//s`

D

`19.6 m//s`

Text Solution

Verified by Experts

The correct Answer is:
D
Normal reaction, `N = mg+(m v^(2))/(r )`, Given `N = 3 mg`
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