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

(1) Zero

(2) 30°

(3) 45°

(4) 60°

Concept Videos :-

#24-Intro-to-Uniform-Circular-Motion
#25-Centripetal-Acceleration
#26-Centripetal &Tangential-Acceleration
#27-Solved-Examples-12
#28-Solved-Examples-13
#29-Solved-Examples-14
#30-Solved-Examples-15
#31-Solved-Examples-16
#32-Kinematics -Uniform-Circular-Motion
#33-Solved-Examples-17

Concept Questions :-

Circular motion

(3) tanθ=v2/rg=v2rg

θ=tan1v2rg=tan110×1010×10

θ=tan1(1)=45° 

Difficulty Level:

  • 18%
  • 10%
  • 70%
  • 4%