A student uses a rubber band to shoot a toy car across a level floor. Assuming there is no friction in this system, what happens to the total energy as the rubber band is released and the car moves across the floor.
1. The total energy remains the same because the increase in kinetic energy of the car is the same as the decrease in the potential energy of the rubber band.
2. The total energy increases because the kinetic energy of the car increases while the potential energy of the rubber band stays the same.
3. The total energy increases because the increase in kinetic energy of the car is greater than the decrease in the potential energy of the rubber band.
4. The total energy decreases because the increase in kinetic energy of the car is less than the decrease of the potential energy of the rubber band.
It is number 1
Answers: 3
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A student uses a rubber band to shoot a toy car across a level floor. Assuming there is no friction...
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