position vs time for three runners\nwhich runner had the fastest speed in the race?\nwhich runner had the…

position vs time for three runners\nwhich runner had the fastest speed in the race?\nwhich runner had the slowest speed in the race?\nwhich runner had a head start?

position vs time for three runners\nwhich runner had the fastest speed in the race?\nwhich runner had the slowest speed in the race?\nwhich runner had a head start?

Answer

Explanation:

Step1: Recall speed - slope relationship

Speed is the slope of a position - time graph. Steeper slope means higher speed.

Step2: Compare slopes

Runner A has the steepest slope, so A has the fastest speed. Runner C has the least steep slope, so C has the slowest speed. A head - start means starting at a non - zero position at time t = 0. Runner C starts at a non - zero position, so C has a head - start.

Answer:

Which runner had the fastest speed in the race? A Which runner had the slowest speed in the race? C Which runner had a head start? C