In 20 Minutes, Kara Ran 2

Multiple Choice

In 20 minutes, Kara ran 2.40 km on a treadmill facing due east. Relative to the gym, what were her displacement and average velocity during this time interval?

A) 0; 0
B) 0; 2.00 m/s
C) 2.40 km, east; 0
D) 2.40 km, east; 2.00 m/s, east
E) 2.40 km, west; 2.00 m/s, west