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A car is moving in a circular horizontal...

A car is moving in a circular horizontal track of radius 10 m with a constant speed of `10ms^(-1)`. A plumb bob is suspended from the roof of the car by a light rigid rod of length 1 m. The angle made by the rod with track is

A

zero

B

`30^(@)`

C

`45^(@)`

D

`60^(@)`

Text Solution

Verified by Experts

The correct Answer is:
c
`mg sin theta = mv^(2) cos theta//R, tan theta = v^(2)//Rg`
` = 100//100 = 1, theta = 45^(@)`
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