Circular MotionHard
Question
A car is moving in a circular horizontal track of radius 10 m with a constant speed of 10 m/s. A plumb bob is suspended from the roof of the car by a light rigid rod. The angle by the rod with the vertical is (Take g = 10 m/s2)
Options
A.zero
B.30o
C.45o
D.60o
Solution
FBD of bob is T sin θ =
and T cos θ = mg
∴ tan θ =
tan θ = 1
or θ = 45o.
Create a free account to view solution
View Solution FreeMore Circular Motion Questions
Two racing cars of masses m1 and m2 are moving in circles of radii r and 2r respectively ; their angular speeds are equa...The graphs below show angular velocity as a function of time. In which one is the magnitude of the angular acceleration ...A bucket is whirled in a vertical circle with a string attached to it.The water in bucket does not fall down even when t...A Toy cart attached to the end of an unstretched string of length a, when revolved moves on a smooth horizontal table in...A particle moves along a circle of radius m with tangential acceleration of constant magnitude. If the speed of the part...