A pendulum's first swing has an arc of 24 inches. As the pendulum swings back and forth, the arc length for each successive swing is 1/2 of the previous swing. If this pattern continues, at which swing of the pendulum will the length of the arc be less than 4 inches?

At swing number the pendulum's arc length will be less than 4 inches.

Group of answer choices

3

4

6

5