- #1
RubinLicht
- 132
- 8
Homework Statement
sorry for the long question.
Homework Equations
The Attempt at a Solution
I get everything up until it asks where the extra "half" of the power is spent. I do know that the extra half is referring to the "2" dK/dt. I have spent the last hour or so thinking about this while working the chapter practice problems out, just in case i glimpse a moment of realization by thinking about energy. Unfortunately no.
Since this is not a "homework problem" could someone just explain why it is 2dK/dt and not the more logical dK/dt?
Energy lost during collision of sand with belt? perhaps something to do with the fact that the belt is a belt and not a plane moving perpetually right?