03:35Angular dynamics and energy conservation, spin rate in a kinetic energy recovery system (KERS).Zak's Lab135
Multiple ChoiceA small 10-kg object is connected to the right end of a thin rod of length 4 m and mass 5 kg. The rod is free to rotate about a fixed perpendicular axis on its left end, as shown below. The rod is initially held at rest, horizontally. When the rod is released, it falls, rotating about its axis, similar to a pendulum. What is the speed at the rod's center of mass when the rod is vertical? BONUS:What is object's speed when the rod is vertical?2703Has a video solution.
Textbook QuestionThe 5.0 kg, 60-cm-diameter disk in FIGURE P12.71 rotates on an axle passing through one edge. The axle is parallel to the floor. The cylinder is held with the center of mass at the same height as the axle, then released. b. What is the cylinder's angular velocity when it is directly below the axle?
