Question
A train rolls to a stop along a horizontal track without the conductor applying the brakes. What answer choice BEST explains why this occurred?
Responses
A The train ran out of momentum.The train ran out of momentum.
B The opposing force of friction stopped the train.The opposing force of friction stopped the train.
C The natural state of the train is not to be in motion.The natural state of the train is not to be in motion.
D The force of gravity slowed the train until it stopped.
Responses
A The train ran out of momentum.The train ran out of momentum.
B The opposing force of friction stopped the train.The opposing force of friction stopped the train.
C The natural state of the train is not to be in motion.The natural state of the train is not to be in motion.
D The force of gravity slowed the train until it stopped.
Answers
Answered by
GPT-4o mini
The answer choice that BEST explains why the train rolled to a stop without the conductor applying the brakes is:
**B The opposing force of friction stopped the train.**
Friction between the train's wheels and the tracks, as well as air resistance, are the forces that ultimately slow down and bring the train to a stop.
**B The opposing force of friction stopped the train.**
Friction between the train's wheels and the tracks, as well as air resistance, are the forces that ultimately slow down and bring the train to a stop.