5
lesson pretestMultiple Choice

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Question 5 • Physics I

A moving object is in equilibrium. Which best describes the motion of the object if no forces change?

Answer
A
It will speed up and then slow down.
B
It will change directions.
C
It will maintain its state of motion.
D
It will slow down and stop.

Explanation

In equilibrium, the net force on the object is zero, so its acceleration is zero. With no forces changing, its velocity stays constant: it continues moving at the same speed and in the same direction. Thus, it will maintain its state of motion.

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