3 39 A block of mass 1 kg slides down a curved track from

Last updated: 6/8/2023

3 39 A block of mass 1 kg slides down a curved track from rest that is one quadrant of a circle of radius 1 m Its speed at the bottom is 2 m s The work done by frictional force is A 8 J C 4J R 1 m Figure 3 93 B 8 J D 4 J P