Question

3 time trials are taken for a marble rolling for a distance of 3 meters. The times are 4.5 s, 5 s, and 5.6 seconds. Determine the average time for rolling and then calculate the average speed for the marble.

Answer 1

The average time for the marble rolling is 5.033 seconds, while the average speed is 0.198 m/s.

Step-by-step explanation:

To find the average time for rolling, you need to take the mean of the three times. The average time is found by adding all the times together and dividing by the number of times.

4.5 s + 5 s + 5.6 s = 15.1 s

15.1 s ÷ 3 = 5.033 s

The average time for the marble rolling is 5.033 seconds.

To calculate the average speed, use the formula average speed = total distance ÷ total time.

Total distance = 3 m

Total time = 15.1 s

Average speed = 3 m ÷ 15.1 s = 0.198 m/s

Therefore, the average speed for the marble rolling is 0.198 m/s.