During which of the following was the travel time of the car the slowest?
A. Study 2, Trial 1
B. Study 2, Trial 2
C. Study 3, Trial 1
D. Study 1, Trial 2

Study 1
The students fitted the car with hard rubber wheels, which had deep treads, and placed it on the surface. One student started the car as another student simultaneously started the stopwatch. The student stopped the stopwatch as the car crossed the 75-foot mark. The students calculated the results of three separate trials and averaged the results (see Table 1).

Study 2
The students repeated the procedure used in Study 1, except they fitted the car with soft rubber wheels, which were smooth and lacked treads. The results are shown in
Table 2.

Transcribed Image Text:

Trial 1 2 3 Average: Table 1 Time (s) 22.8 23.2 22.5 22.8 Speed (ft/s) 3.28 3.23 3.33 3.28