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 `=mgcos theta`
B. Speed v of particle `=sqrt((lgsin^(2)theta)/costheta)`
C. Period T`=2pisqrt((lcostheta)/g)`
D. Centripetal acceleration `a=(Fsintheta)/m` where F is tension

Answer

B, C, D

Explanation

(1) `Fcostheta=mg`
(2) `Fsintheta=(mv^(2))/(Lsintheta)`