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REPORT FOR M5 EXPERIMENT: NEWTON’S 2 nd LAW
The point of this lab was to learn about Newton’s 2
nd
Law F=ma
VI2 My data for V2 is shown below
L(cm)
∆
t1(s)
∆
t2(s)
∆
t3(s)
∆
t4(s)
Average
t(s)
σ∆
t(s)
average
∆
t(squared)(s
squared)
∆
s
5
0.1245
0.1256
0.1313
0.1257
0.1268
0.00307
0.01607
0.1926
10
0.2351
0.2349
0.2352
0.2349
0.2350
0.00015
0.05524
0.7180
20
0.4445
0.4434
0.4434
0.4440
0.4438
0.00053
0.19698
2.5403
30
0.6380
0.6378
0.6360
0.6344
0.6366
0.00169
0.40520
5.1472
Mass on hanger, M = 10.0 g
M
1
= M(glider) + M(5 cm flag) + M(10 cm flag) + M(20 cm flag) + M(30 cm flag) =552.9
M
2
= M + M(weight hanger) = 15.65g
Start position of glider rear end on the air track: L = 85 cm
Final position of glider rear end on the air track: L’ = 55 cm
d = L – L’ = 30.0 cm
From the data I used excel to graph change in s vs. average t squared
Average
∆
t
squared
∆
s
0.01607
0.1926
0.05524
0.7180
0.19698
2.5403
0.40520
5.1472
Slope 12.71378
Intercept
0.008869
Uncertainty in
slope 0.08617
Uncertainty in
slope 0.019569
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 Spring '10
 SMITH

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