1.703

2

1.859

2.031

2.078

2.578

2.875

2.672

2.797

2.75

1 domino - 1st 5 lines are interval readings of first 5 trials, next 5 lines are the readings of last 5 trials.

** **

1.297

1.125

1.266

.953

1.078

1.453

1.25

1.203

1.344

1.25

2 dominoes - 1st 5 lines are interval readings of first 5 trials, next 5 lines are the readings of last 5 trials.

** **

1.219

.781

.891

.906

.828

1.078

.984

1.063

1.0313

1.047

3 dominoes - 1st 5 lines are interval readings of first 5 trials, next 5 lines are the readings of last 5 trials.

** **

1.934, .1529

Mean and standard deviation of times down ramp for 1 domino, right-to-left

2.734, .1143

Mean and standard deviation of times down ramp for 1 domino, left-to-right.

1.144, .1409

Mean and standard deviation of times down ramp for 2 dominoes, right-to-left.

1.3, 0.09969

Mean and standard deviation of times down ramp for 2 dominoes, left-to-right.

.925, .1718

Mean and standard deviation of times down ramp for 3 dominoes, right-to-left

1.041, 0.03616

Mean and standard deviation of times down ramp or 3 dominoes, left-to-right

All means & s. deviations were obtained from data program.

** **

14.8cm/s

10.2 cm/s

24.5 cm/s

21.5 cm/s

30.3 cm/s

26.9 cm/s

I used the vAve formula, the mean was used as the `dt. vAve = 28cm / 1.934s = 14.5cm/s.

** **

28.6 cm/s^2

7.46 cm/s^2

42.8 cm/s^2

33.1 cm/s^2

65.5 cm/s^2

51.7 cm/s^2

I took the average and multiplied by 2 to find the vf, I took the vf and divided by the time to arrive at aAve.

** **

18 cm/s^2

38 cm/s^2

58.6 cm/s^2

I added the 2 values together and divided by 2.

** **

10.6 cm/s^2

22.2 cm/s^2

56 cm/s^2

** **

No.

No, they are not really close.

They are not the same due to the inaccuracies in the readings I assume.

** **

.3, 10.6 cm/s^2

.6, 22.2 cm/s^2

.9, 56 cm/s^2

The 1st number is the ramp slope, it’s unitless. The 2nd number is the acceleration (averaged means).

** **

0

.8

This is the slope, there are no units.

This is the acceleration, in cm/s^2.

** **

.1, .8

I made a straight line fit on the graph and made the measurements.

** **

.1

.8cm/s^2

8cm/s^2

This shows the acceleration of .1 slope.

** **

1.934, 2.734, 2.3

.1529, .1143, .1

This shows the range of the uncertainties.

** **

2.2, 2.4

The 1st number is the left boundary and the 2nd number is the right boundary.

** **

12.7cm/s, 11.5cm/s^2

11.7cm/s, 9.75cm/s^2

9.75cm/s^2, 11.5cm/s^2

This takes into account any inaccuracies and the number you obtain could be anywhere in this range.

** **

1.144, 1.3, 1.2

.1409, 0.09969, .1

This shows the range of the uncertainties.

1.1, 1.3

The 1st number is the left boundary and the 2nd number is the right boundary.

25.5 cm/s, 46.4cm/s^2

21.5cm/s, 33.1cm/s^2

33.1cm/s^2, 46.4cm/s^2

This takes into account any inaccuracies and the number you obtain could be anywhere in this range.

** **

.925, 1.041, 1

.1718, 0.03616, .1

This shows the range of the uncertainties.

.9, 1.1

The 1st number is the left boundary and the 2nd number is the right boundary.

31.1 cm/s, 69.1 cm/s^2

25.5 cm/s, 46.4 cm/s^2

46.4 cm/s^2, 69.1 cm/s^2

This takes into account any inaccuracies and the number you obtain could be anywhere in this range.

** **

.3, 9.75cm/s^2

.6, 33.1cm/s^2

.9, 46.4 cm/s^2

.3, 11.5cm/s^2

.6, 46.4cm/s^2

.9, 69.1 cm/s^2

The 1st 3 lines show 1st the slope, then the lower range of the acceleration, the last 3 lines show 1st the slope, then the upper range of the acceleration.

** **

Yes, the graph is increasing.

Yes, the line comes close to the points.

** **

I used slope .2 instead of .1 since my line intercepts at .1.

8cm/s^2, .2, 40cm/s^2

Slope was obtained by dividing the rise by the run. The 1st number is the rise, the 2nd, the run, the 3rd is the slope. (.2, 8)

I believe your slopes should be .03, .06 and .09, not .3, .6 and .9.

This will affect your last few answers and should be very easy to correct.

** **

8cm/s^2, .15, 53.3cm/s^2

Slope was obtained by dividing the rise by the run. The 1st number is the rise, the 2nd, the run, the 3rd is the slope. (.15, 8)

** **

2.5 hrs.

** **

Mr. Smith,

Can you give me an estimate as to where I stand grade wise in the class right now?

Very good, except for a few easily-corretable errors related to your ramp slopes.

&#Please see my notes and submit a copy of this document with revisions and/or questions, and mark your insertions with &&&& (please mark each insertion at the beginning and at the end). &#