TRUE OR FALSE. When non-conservative forces are present, the amount of work done increases with the length of the path.

True

Explanation:

When non-conservative forces are present, the amount of work done increases with the length of the path, this is true because, when a force is applied, the force does when and the non-conservative forces also do work. Since the non-conservative force work against the force  applied, this tend to increase the net work done by the applied force to compensate for the loss in energy due to the work done by the non-conservative forces.

at positions a, g kinetic energy is maximum.

at position d, potential energy is maximum.