Question

which example shows rotary motion?
a player running straight down a football field
a runner running on a straight track
a car racing on a circular track
a gymnast walking on a balance beam

Explanation:

Rotary motion is circular motion around a fixed - point. A player running straight, a runner on a straight track, and a gymnast on a balance beam are in linear motion. A car racing on a circular track moves in a circular path around the center of the track, which is rotary motion.

Answer:

a car racing on a circular track