Question

Simone swims the 200m individual medley (all four strokes) in 2:14.43 seconds. She swims the butterfly 50m in 28.58s, the backstroke 50m in 36.13s, the breaststroke 50m in 40.40s, and the freestyle 50m in 29.32s. *For this problem, round to the nearest thousandth (0.001)

a. Calculate Simone’s average speed during each 50m (4points)

Answer 1

Average speed is given by, Vavg=distance traveled/time taken

Distance travelled in butterfly=d=50 m

Time taken=t=28.58 seconds

Average speed=Vavg=d/t=50/28.58=1.749 m/s

Distance travelled in backstroke=d=50 m

Time taken=t=36.13 seconds

Average speed=Vavg=d/t=50/36.13=1.384 m/s

Distance travelled in breaststroke=d=50 m

Time taken=t=40.40 seconds

Average speed=Vavg=d/t=50/40.4=1.238 m/s

Distance travelled in freestyle=d=50 m

Time taken=t=29.32 seconds

Average speed= Vavg=d/t=50/29.32=1.705 m/s