A box with mass 0.0325 kg moves in a vertical circle that has aradius of 0.600 m on the inside of a circular track. When the boxis at the bottom of its path, point A, the magnitude of the normalforce exerted on the box by the track has magnitude 3.75 N. Whenthe box reaches the top of its path, point B, the magnitude of thenormal force exerted on the box has magnitude 0.665 N.
How much work was done on the box by friction during the motionof the box from point A to point B?
