1. Title: Mr. Smart Trains for a Sprint Triathlon
Name
Date
Science
Class
Title: Mr. Smart Trains
for a Sprint Triathlon
Mr. Smart decides to compete in a sprint triathlon, which is a combination sport that involves swimming, biking, and running.
He prepares for the event by practicing every night after school at GCS.
On the day of the meet, Mr. Smart completes the .75km swim in 20 minutes.
Still feeling good, he then completes the 20km biking course in 30 minutes.
Struggling but determined, Mr. Smart completes the final 5km run in 35 minutes.
Mr. Smart does not take first place in his triathlon event, but he feels great about competing and finishing the race.
Point
Time
( ) x
Distance
( ) y

2. 2. Label the journey legs #1, #2, and #3.
Name
Date
Science
Class
Graph Mr. Smart’s triathlon, using time (hours) on the x axis, and distance (kilometers) on the y-axis.
2. Label the journey legs #1, #2, and #3.
3. Calculate average speed for leg #1 in km/min (swimming).
4. Calculate average speed for leg #2 in km/min (biking).
5. Calculate average speed for leg #3 in km/min (running).
6. What is the average speed for the whole event in km/min?
7. If Mr. Smart trains some more, and is able to bring down his running time to 25 minutes, then what will be his average speed in km/min?
Sample times at race.
Image at