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Laws Of Motion

Question
CBSEENPH11017033

In the figure shown, a rod of length 24cm is pivoted near an end in horizontal plane. At the free end a simple pendulum of length 24 cm is suspended. The system is made to rotate with angular velocity ω so that the string makes an angle 37° with vertical. Find ω.


Solution
Rod of length = 24 cm 
Length of simple pendulum = 24 cm 
Angular velocity, straight omega = 37o, with the vertical.
From the figure below, the bob will rotate in a horizontal circle of radius of radius r given by, 
              
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