The small circles in the diagram below represent the positions along the x axis of a body at equal time intervals.Assume the body moves in a straight line. This diagram is most likely to describe
A)a swimmer swimming laps.
B)an exercise on a rowing machine.
C)a person on a treadmill.
D)a tennis ball during a volley.
E)a runner who tripped,fell,rose,and continued racing.

Question

The small circles in the diagram below represent the positions along the x axis of a body at equal time intervals.Assume the body moves in a straight line.  This diagram is most likely to describe
A)a swimmer swimming laps. 
B)an exercise on a rowing machine. 
C)a person on a treadmill. 
D)a tennis ball during a volley. 
E)a runner who tripped,fell,rose,and continued racing.

Quizplus · Accepted Answer

The diagram shows a back-and-forth motion, with the body moving forward, stopping abruptly, and then moving in the opposite direction. This is most likely to occur if a runner trips, falls, gets up quickly, and continues racing. The other options (swimming laps, rowing machine, treadmill, and tennis ball volley) would show a more repetitive, cyclical motion.

The Small Circles in the Diagram Below Represent the Positions