A body of mass 
rotates along a circle with radius 
on a plane inclined by an angle 
with respect to the horizontal (see the figure below). At point A, the tension in the rope is 
.
What is the velocity of the body at point A?
What is the kinetic energy of the body at point A?
What is the potential energy of the body at point A, assuming that the potential energy of the body at point B is zero?
On the path from point A to point B, the work done by frictional force 
. What is the kinetic energy of the body at point B?
What is the velocity of the body at point B?
What is the tension in the rope at point B?
Body on an inclined plane
