The swimmer swims in a straight line in the pool. her motion is shown on the following graph of position xxx vs. time ttt.
graph of x (in meters) vs. t (in seconds). the y-intercept is at (0,0), then x increases linearly from 0 m to 2 m over 4 s, stays constant at 2 m from 4 to 8 seconds, and then decreases linearly from 2m to 0 m between 8 s and 12 s.
graph of x (in meters) vs. t (in seconds). the y-intercept is at (0,0), then x increases linearly from 0 m to 2 m over 4 s, stays constant at 2 m from 4 to 8 seconds, and then decreases linearly from 2m to 0 m between 8 s and 12 s.
what is the average speed of the swimmer between the times t=0\text{ s}t=0 st, equals, 0, start text, space, s, end text and t=8\text{ s}t=8 st, equals, 8, start text, space, s, end text?