A ball of mass 100 g is suspended on a long rope of length 1 m. The ball is moved away so that it is inclined at an angle 
to the vertical and then released.
Setting up the experiment .
How high is the ball raised relative to its lowest position?
What is the velocity of the ball as it passes through the lowest position?
Draw the external forces on the ball in its lowest position and name them.
Determine the magnitude of external forces on the ball in its lowest position.
.
.
of the ball, and
of the rope.
