Pendulum Lights A Conical Pendulum Consists Of A Particle Attached To The End Of A Light Inextensible String Of Length 0.8m?

A conical pendulum consists of a particle attached to the end of a light inextensible string of length 0.8m? - pendulum lights

A conical pendulum consists of a particle on the end of a light elastic string of length 0.8 m attached. The particle moves in a horizontal circle, and the system rotates with constant angular velocity of 4 rad s ˉ ¹. Find the angle that the rope with the vertical.