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A stone is hanging with with a thread from the end of a round table[ r = 22.6cm ]. The table is roated such that the thread forms an angle of (pie/6) about the vertical. What is the angular velocity of that table??

A stone is hanging with with a thread from the end of a round table[ r = 22.6cm ]. The table is roated such that the thread forms an angle of (pie/6) about the vertical. What is the angular velocity of that table??

Grade:12

2 Answers

Subhajit Chakraborty
18 Points
11 years ago

I have solved it . w = 5 rad/s

vikas askiitian expert
509 Points
11 years ago

let the tension in the thread is T

     the stone is in equilibrium thus

  Tcos60=mw^2r

   T sin60=mg

  r = lcos60 , here l is the length of thread

we get w=7 rad

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