A body with mass 
and tied to a 
long rope is rotated uniformly in a vertical plane at a speed of 
. The rotating body is observed in three positions at angles 
, 
and 
to the horizontal as shown in figure 1 below.
Figure 1: Rotating body
Draw the external forces on the body in position 1 and name them.
Calculate the tension force in the rope in all three positions.
Calculate and record in a table, the tension force in the rope when the body is at the positions at the multiple of 
angles from 
to 
.
Draw the graph of the tension force in the rope against the angle 
.
of the body, and
in the rope.
at posiiton 
.
at position 
.
at position 
.
in the rope against the angles 
