An automobile enters a turn whose radius is R. The road is banked at angle `theta`. Fricton is negligible between wheels of the automobile and road, Mass of automobile is `m` and speed is `v`. Select the correct alternative.

Options

A. net force on the automobile is zero
B. normal reaction on the automobile is `mg cos theta`
C. normal reaction on the automobile is `mg sec theta`
D. net force on the automobile is `sqrt((mg)^(2)+(mv^(2)//R)^(2))`

Answer

C