Question

speed challenge lab
get ready!
step 1: gather your materials!
each team needs 2 timers, 1 meterstick, 1 roll of masking tape, and 1 marker.
step 2: create your “race” track!
find a spot in the hallway and measure off a 10 - meter race track. use three pieces of tape to mark the beginning, middle, and end of your track. mark each distance (0 m, 5 m, and 10 m) on the tape with a marker.
step 3: go for it!
each team member will need to perform the following tasks for each distance: hopping, walking backwards, walking (regular rate), and speed walking. your team will need people with timers or stopwatches at the 5 meter and 10 meter points. record the time it takes to perform each task.
note: speed walking is going as fast as you can without jogging or running!
collect that data!
record your data from the experiment in the chart, then use the information to calculate the speed for each task and distance. round answers to the nearest hundredth if needed. label your answers!

task	distance	time	speed
	10 m	6.72
walking backwards	5 m	4.39
	10 m	10.03
walking regular	5 m	3.47
	10 m	7.61
speed walking	5 m	3.05
	10 m	5.45

Explanation:

Step1: Recall speed formula

The formula for speed is $v=\frac{d}{t}$, where $v$ is speed, $d$ is distance, and $t$ is time.

Step2: Calculate speed for hopping at 5 m

Substitute $d = 5$ m and $t=4.02$ s into the formula: $v=\frac{5}{4.02}\approx1.24$ m/s.

Step3: Calculate speed for hopping at 10 m

Substitute $d = 10$ m and $t = 6.72$ s into the formula: $v=\frac{10}{6.72}\approx1.49$ m/s.

Step4: Calculate speed for walking backwards at 5 m

Substitute $d = 5$ m and $t=4.39$ s into the formula: $v=\frac{5}{4.39}\approx1.14$ m/s.

Step5: Calculate speed for walking backwards at 10 m

Substitute $d = 10$ m and $t = 10.03$ s into the formula: $v=\frac{10}{10.03}\approx0.99$ m/s.

Step6: Calculate speed for regular walking at 5 m

Substitute $d = 5$ m and $t=3.47$ s into the formula: $v=\frac{5}{3.47}\approx1.44$ m/s.

Step7: Calculate speed for regular walking at 10 m

Substitute $d = 10$ m and $t = 7.61$ s into the formula: $v=\frac{10}{7.61}\approx1.31$ m/s.

Step8: Calculate speed for speed - walking at 5 m

Substitute $d = 5$ m and $t=3.05$ s into the formula: $v=\frac{5}{3.05}\approx1.64$ m/s.

Step9: Calculate speed for speed - walking at 10 m

Substitute $d = 10$ m and $t = 5.45$ s into the formula: $v=\frac{10}{5.45}\approx1.83$ m/s.

Answer:

Task	Distance	Time	Speed (m/s)
Hopping	10 m	6.72 s	1.49
Walking Backwards	5 m	4.39 s	1.14
Walking Backwards	10 m	10.03 s	0.99
Walking Regular	5 m	3.47 s	1.44
Walking Regular	10 m	7.61 s	1.31
Speed Walking	5 m	3.05 s	1.64
Speed Walking	10 m	5.45 s	1.83