comparing the motion of three runners\nposition vs time for three runners\nwhich runner had the fastest…

comparing the motion of three runners\nposition 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?

comparing the motion of three runners\nposition 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 the position - time graph. Steeper slope means higher speed.

Step2: Identify fastest runner

Runner A has the steepest slope, so A has the fastest speed.

Step3: Identify slowest runner

Runner C has the least steep slope, so C has the slowest speed.

Step4: Identify head - start

A head - start means starting at a non - zero position. Runner B starts at a non - zero position on the position axis, so B 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? B