Question

Calculate the average time it took the car to travel 0.25 and 0.50 meters with four washers attached to the pulley. Record the averages, rounded to two decimal places, in Table C of your Student Guide.

What is the average time it took the car to travel 0.25 meters?

seconds

What is the average time it took the car to travel 0.50 meters?

seconds

Answer 1

I don’t have your trial times — please paste the measured times for each trial at 0.25 m and for each trial at 0.50 m and I’ll compute the averages and round them to two decimals.

If you want to compute them yourself, use this method:
1. Add all times for the distance: sum = t1 + t2 + ... + tn.
2. Divide by the number of trials: average = sum / n.
3. Round the result to two decimal places.

Example:
- Suppose the 0.25 m trial times were 1.12 s, 1.05 s, 1.08 s. Sum = 3.25 s, average = 3.25 / 3 = 1.0833… → rounded = 1.08 s.
- Suppose the 0.50 m trial times were 2.20 s, 2.15 s, 2.18 s. Sum = 6.53 s, average = 6.53 / 3 = 2.1766… → rounded = 2.18 s.

Send your actual trial times and I’ll calculate the two averages for you.