To do work, this truck uses energy stored in chemical fuel and an electrical battery.
How much total energy does this truck put out?
O 50J
250
O 400
Input
energy
? J
Kinetic
energy
400 J
0800 J
Heat
250 J
Friction
150 J

"To do work, this truck uses energy stored in chemical

fuel and an electrical battery.

How much total energy does this truck put out?"

For your question "To do work, this truck uses energy stored in chemical fuel and an electrical battery. How much total energy does this truck put out?"

The answer would be 800 J

400 + 250 + 150 = 800