1. The string of a conical pendulum is 1m long. An initial speed of 3m/s causes the bob to describe a horizontal circle. Find the inclination of the string to the vertical and the time of revolution. The answers at the back give 50.1 and 1.6s I'm trying to find the angle that the string makes with the vertical (I've called it A) I have constructed 2 equations after making a fbd or the pendulum. (1) TcosA=mg (2) T=mLw^2 These give me equation 3, by replacing Tension in equation 1 then the masses cancel out. (3) cosA=g/Lw^2 I put my numbers in cosA=9.81/1*3^2 cosA=9.81/9 cosA=1.09 I cant see where I'm going wrong.