Question

A 6-column table with 3 rows in the second, third, and fifth columns and 1 row in the other columns. The first column labeled Number of Washers has entry 1 washer mass = 4. 9 grams. The second column labeled Trial has entries trial number 1, trial number 2, trial number 3. The third and fourth columns labeled Time to travel 0. 25 meters t subscript 1 (seconds) have entries in the third column 2. 24, 2. 21, 2. 23 and average 2. 23 in the fourth column. The fifth and sixth columns labeled time to travel 0. 5 meters t subscript 2 (seconds) have entries in the fifth column 3. 16, 3. 08, 03. 15 and in the sixth column average 3. 13. What is the average velocity of the car over the first 0. 25m? m/s What is the average velocity of the car over the second 0. 25m? m/s.

Answer 1

The average travel time is simply the mean travel time between the given points.

• The average time that it takes for the car to travel the first 0.25m is 2.23s.

• The average time to travel just between 0.25m and 0.50m is 0.9s.

What is the formula to find the average time?

The average time calculated with the help of following formula;

$\rm Average \ Time = \dfrac{Sum\ of \ all \ data}{Number \ of \ data}$

a) The average time to travel the first 0.25m

The time travel in the first 0.25m are 2.24s, 2.21s, and 2.23s.

So, the average time to travel is:

$\rm Time = \dfrac{2.24+2.21+2.23}{3}\\\\Time = \dfrac{6.68}{3}\\\\Time = 2.23$

The average time that it takes for the car to travel the first 0.25m is 2.23s.

(b) The average time to travel just between 0.25m and 0.50m

The time travel in the 0.50m is 3.16s, 3.08s, and 3.15s.

So, the average time to travel this distance is:

$\rm Average \ time = \dfrac{3.16+3.08+3.15}{3}\\\\Average \ time = \dfrac{9.39}{3}\\\\Average \ time =3.13$

The average time to travel between both distances is the difference between the average time of each distance.

Then,

Average = 3.13 - 2.23 = 0.9 seconds

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