Which scenario describes periodic behavior?

A. The movement of a CD in a CD-player
B. The takeoff and landing of a jet plane
C. The flight of a football during a pass
D. Tossing a tennis ball up into the air

What do you think? Please explain. Thank you!

Question

Which scenario describes periodic behavior?

 A. The movement of a CD in a CD-player
 B. The takeoff and landing of a jet plane
 C. The flight of a football during a pass
 D. Tossing a tennis ball up into the air

 What do you think? Please explain. Thank you!

some.random.cool.kid · Answer

welcome to open study!!! xD jk

anonymous · Answer

The first thing you have to define is what you are measuring and with respect to what (usually the what is time).

The questions are actually pretty vague but you can decide whether there are variables that do fit the criteria.

To start you off you could look at D and think about the ball's height from where you toss it. In this situation (assuming you only throw it once) the ball eventually comes down and then it stops so periodic behavior for this is out of the question.

Try thinking about all the other cases and see what you can come up with in terms of the variable over time.

kj4uts · Answer

The flight of a football sounds similar to the tennis ball answer. But that leaves me stuck on the CD or Jet Plane. A CD continuously spins and a jet does takeoff and land but im still confused between the two?