# Chapter 3 - Problems - Page 111: 6

(a) He traveled a distance of 150 meters. (b) The displacement is 95.5 meters to the east.

#### Work Step by Step

(a) Since he ran half of the circumference, he traveled a distance of 150 meters. (b) The displacement is the length of the track's diameter (to the east). We can find the length of the diameter $d$: $d = \frac{300~m}{\pi} = 95.5~m$ The displacement is 95.5 meters to the east.

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.