To do work, this truck uses energy stored in chemical fuel and an electrical battery. An illustration of truck with a wide arrow away from it labeled input energy? J and it splits into 3 arrows labeled kinetic energy 400 J, heat 250 J, and friction 150 J. How much total energy does this truck put out? 50 J 250 J 400 J 800 J
I think it may be 800 J.
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