Question

Select the best answer for the question

19. Which of the following real-world examples models linear motion?
O A. Running around the curve of a track
O B. Running 50 m along a straight track
C. Throwing a rock in the air at a 60-degree angle
OD. Throwing a rock in the air at a 45-degree angle

Answer 1

B. Running 50 m along a straight track
Step-by-step explanation:

Running 50 m along a straight track is a real-

world example of linear motion.

Linear motion means moving along a (straight) line, a direct and straight line from point A to point B.

All the other proposed answers (A,B,C) involve a curve.

The two rock examples will curve due to gravity and running around a curve on a track isn't a straight line.

I hope that helps you understanding the principle of linear motion.