A 4.0-kg object is moving with speed 2.0 m/s. A 1.0-kg object is moving with speed 4.0 m/s. Both objects encounter the same constant braking force, and are brought to rest. Which object travels the greater distance before stopping?
A) the 4.0-kg object
B) the 1.0-kg object
C) Both objects travel the same distance.
D) It is impossible to know without knowing how long each force acts.

Question

Quizplus · Accepted Answer

The distance traveled by each object before coming to a stop depends only on their initial speed and the magnitude of the braking force acting on them. Both objects encounter the same force, so they decelerate at the same rate. Thus, they will travel the same distance before coming to a stop.

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