One meter is equal to 100.0 cm (1 m = 100 cm). Use your data from Trial 4 to calculate the average speed of the rolling ball in m/s (meters per second).

Explanation:

Hello,

In this case, since the given information shows that the traveled distance by the rolling ball was 400 cm that in meters is:

Thus, since the average speed is computed by using the distance and time (which was 2.97 s for this experiment):

Thus, we obtain in m/s:

Best regards.

thermal energy is the answer