Question

ustrate it! station instructions
each member of the group will draw a quick sketch on the lab sheet the shows they understand the concept that is being taught.
use the graph paper and writing utensils that are provided.
draw a speed graph on your lab sheet that matches the following scenario:
a runner jogged 40m at a slow pace for 40 seconds. she then stopped for 40 seconds to get a drink of water. after that, she sped up and ran 60m more in 20 seconds.
tip: y axis - total of 100 meters
x axis - total of 100 seconds

Explanation:

Step1: Analyze the first segment

The runner jogs 40m in 40s. So, from (0,0) to (40,40), the slope (speed) is $\frac{40 - 0}{40 - 0}=1$ m/s.

Step2: Analyze the second segment

She stops for 40s. So, from (40,40) to (40 + 40,40)=(80,40), the slope is 0 (since distance doesn't change with time).

Step3: Analyze the third segment

She runs 60m in 20s. So, from (80,40) to (80+20,40 + 60)=(100,100), the slope is $\frac{100 - 40}{100 - 80}=\frac{60}{20}=3$ m/s.

Step4: Draw the graph

• Plot the points (0,0), (40,40), (80,40), (100,100).
• Connect (0,0) to (40,40) with a line (slope 1).
• Connect (40,40) to (80,40) with a horizontal line (slope 0).
• Connect (80,40) to (100,100) with a line (slope 3).

Answer:

The graph should have three segments: from (0,0) to (40,40), then horizontal to (80,40), then to (100,100) as described in the steps.