Question
Question: A car is moving in a circular horizontal track of radius 10 m with a constant speed of 10 ms<sup>-l<...
A car is moving in a circular horizontal track of radius 10 m with a constant speed of 10 ms-l. A plumb bob is suspended from the roof of car by a light rigid rod of length 1 m. The angle made by rod with the track is
A
Zero
B
300
C
450
D
600
Answer
450
Explanation
Solution
T sin θ = Rmv2
and T cos θ = mg

∴ tanθ = 1 or θ = 450