A car is moving in a circular horizonta track of radius 10m with a constant speed of 10 m/s. A pendulum bob is suspended from the roof of the cat by a light rigid rod of length 1.00m. The angle made by the rod with track is

Options

A. `zero`
B. `30^(@)`
C. `45^(@)`
D. `60^(@)`

Answer

C

Explanation

`tan theta=(v^(2))/(Rg)=((10)^(2))/((10)(10))=1`
`theta=45^(@)`