Which of the following is the best example of uniform circular motion?
a. the motion of the second hand on a clock
b. a child swinging on a park swing
c. a golf ball after it has been hit off the tee
d. a skier curving back and forth across a wide slope

The only choice that describes ANYTHING moving in a circle is ' A '.

The park swing and the skier go back and forth. 
The golf ball goes up and then down, once.

Football was the fourth deadliest sport with a fatality rate of .81 per 100,000 participants. cheerleading, which has been shown to be the most dangerous activity based on injury data, was not included in the study because it was not classified as a sport.this is my answer because it didn’t give me any sports