Many machines employ cams for various purposes, such as opening and closing valves. In Figure P10.46, the cam is a circular disk of radius R with a hole of diameter R cut through it. As shown in the figure, the hole does not pass through the center of the disk. The cam with the hole cut out has mass M. The cam is mounted on a uniform, solid, cylindrical shaft of diameter R and also of mass M. What is the kinetic energy of the camshaft combination when it is rotating with angular speed v about the shafts axis?
GALILEO’S GREATEST DISCOVERY ● Falling from rest ○ without friction, all object’s speed increases by 9.8 m/s each second ● the total distance fallen is proportional to the square of the total time ● the distance fallen during each time is proportional to the set of odd numbers
