A Conical Pendulum Is Constructed by Attaching a Mass to a String

Multiple Choice

A conical pendulum is constructed by attaching a mass to a string 2.5 m in length. The mass set in motion in a horizontal circular path about the vertical axis. If the angular speed of the conical pendulum is a constant 2.8 rad/s, then the angle the string makes with the vertical axis is

A) 48 degrees.
B) 60 degrees.
C) 71 degrees.
D) 75 degrees.
E) 80 degrees.