3.3 WS #3
Name____________________________
1. Describe the walk shown in each graph. Include where the walker started, how quickly and in what
direction the walker moved, and how long the walk lasted. The units for x are seconds and for y are
meters.
QuickTime™ and a
decompressor
are needed to see this picture.
2. Walker A starts at the 0.5 m mark and walks away from the sensor at a constant rate of 1.7 m/s for 6
seconds.
Walker B starts at the 4 m mark and walks toward the sensor at a constant rate of 0.3 m/s for 6 seconds.
a. Complete the table of values for each walker.
Time in
seconds
Walker A
Distance (m)
Walker B
Distance (m)
0
1
b. Write a two-variable recursive routine for
walker A and check the table using your
calculator for accuracy.
2
3
4
5
6
c. Write a two-variable recursive routine
for Walker B, and check the table using
your calculator for accuracy.
3. The time-distance graph shows Carol walking at a steady rate. Her
3.3 WS #3
Name____________________________
partner used a motion sensor to measure her distance from a
given point.
a. According to the graph, how much time did Carol spend walking?
b. Was Carol walking toward or away from the motion sensor? Explain
your thinking.
QuickTime™ and a
decompressor
are needed to see this picture.
c. Approximately how far away from the motion sensor was she when
she started walking?
d. If you know Carol is 2.9 m away from the
motion sensor after 4 seconds, how fast was
she walking?
e. If the equipment will measure
up to 6 m, how many seconds of
data can be collected if Carol
continues walking at the same rate?