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plz and this questions

Asked by Umesh 1st December 2017, 9:45 AM
Answered by Expert
Answer:
Let T is the tension acting on the string. If T is resolved into vertical and horizontal components, vertical component balances the weight of the ball and horizontal componenet provides centripetal force. Let ω be the angular velocity

mg = T cosθ .................(1)
2r = T sin θ ........................(2)
 
Divide (2) by (1) to get tanθ = ω2r/g = r/h 
 
 
Hence 
begin mathsize 12px style omega space equals space 2 pi cross times p space equals space square root of g over h end root

h e n c e space p space equals space fraction numerator 1 over denominator 2 pi end fraction square root of g over h end root end style
 

Answered by Expert 1st December 2017, 12:26 PM
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