at 2.5 seconds, the helicopter has a kinetic energy of 20 j. what is the mechanical energy at that time
8-1 Discussion: Making Connections Treat this discussion as a collaborative space for conversation about what you learned during this
8-1 Discussion: Making Connections Treat this discussion as a collaborative space for conversation about what you learned during this course and how that knowledge might apply to your future. To ensure an interesting discussion, you are encouraged to think creatively about your initial posts and extend the points made by