A particle of mass m suspended by a string of length l revolves in a horizontal circle (`theta` is the angle the string makes with vertical). Which of the following statement(s) is // are correct?

Options

A. Tension in string=`mg cos theta`
B. Speed v of particle `=sqrt((lg sin^(2) theta)/(cos theta))`
C. Period T=`2pisqrt((l cos theta)/(g))`
D. Centripetal acceleration a `=(F sin theta)/(m)` where F is tension

Explanation

(i) `F cos theta=mg `
(ii) `F sin theta=(mv^(2))/(L sin theta)`