Why Is the Third Pendulum Traveling the Fastest?

[jim1174]

You have a Photo of a pendulum with three pendulums. One is at an angle to the right the second Is straight down and third is at an angle to the left. The pengulum in the middle is traveling the greatest speed but why is the third one traveling the fastest ?

 

[gneill]

You have a Photo of a pendulum with three pendulums.

That really doesn't make much sense. One pendulum with three pendulums?

Perhaps you mean a time-lapse photo showing one pendulum in three different positions? I think we need more context and a better description to be able to interpret your question.

 

[jim1174]

Yea I meant a time laps photo sorry. If the one is the middle is traveling the greatest speed then wouldn't it also be traveling the fastest?

 

[gneill]

Yea I meant a time laps photo sorry. If the one is the middle is traveling the greatest speed then wouldn't it also be traveling the fastest?

What is "fastest"? According to whom? Apparently we need more context. What is the frame of reference of the observer and the frame of reference of the pendulum?

Edit: Also, which direction is the pendulum moving in for each of the positions shown?

 

[anorlunda]

You have a Photo of a pendulum with three pendulums.

Can you post the photo? Use the UPOAD button.