Question

which object is traveling fastest at 4 seconds? position (cm) time (s) a a b b c same speed

Explanation:

Step1: Recall speed - slope relation

Speed is given by the slope of the position - time graph. Steeper the slope, higher the speed.

Step2: Observe slopes at t = 4 s

At t = 4 s, the slope of line A is steeper than the slope of line B.

Answer:

A. A