please help (urgent)
A small object of mass m is attached to a light string. The light string is attached to a fixed point on the ceiling. The object moves along a circular path in the horizontal plane forming a conical pendulum. The angle between the string and the vertical direction is fixed.

1. How are T, mg, and related?

A. Tcos =mg

B. T = mg cos

C. T sin =mg

D. T = mg sin

E. T = mg

2. What is the net force pointing to the center of the circle?

A. T

B. T sin

C. T tan

D. mg cos

E. T cos

3. How are [tex]ma_{cp}[/tex] and mg related?

A. [tex]ma_{cp}[/tex] = mg sin

B. [tex]ma_{cp}[/tex] =mg tan

C. [tex]ma_{cp}[/tex] = mg cos

D. [tex]ma_{cp}[/tex] = mg

E. [tex]ma_{cp}[/tex] tan =mg

4. If =15.0° and r = 0.200 m, find the angular speed and the linear speed of the object.

v = ____m/s

[tex]\omega[/tex] = ___rad/s

5. Is this a simple harmonic motion?
A. yes
B. no