Question

Which of the below pendulums will move the slowest, if each one of them is displaced by an angle of \(60 \degree\) from the center?

• A.
• B.
• C.
• D.

Answer 1

The Correct Option is B

1. All four pendulums are pulled to the same angle, so the angle plays no role in comparing their speeds.
2. A pendulum's swing time depends only on its string length: the longer the string, the slower the swing.
3. Comparing the four pictures, the pendulum in option B has the longest string, so it takes the longest time per swing.

the correct answer is Option B, the pendulum with the longest string.