A toy train engine rests motionless on a track. One student begins pushing the engine to the right with a force of 2 newtons. At the same time, another student begins to push the engine to the left with a force of 5 newtons. Which of the following best describes the motion of the engine?
a
It travels left at a constant speed.
b
It travels left at an increasing speed.
c
It travels right at a constant speed.
d
It travels right at an increasing speed.
Answers: 3
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