PASCO ME-9215B Photogate Timer - Manual (Page 34)

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Photogate Timer 012-06379B
®
Table 4.2 Constant Accelerating Force
Notes - on Analysis
e
yes. The acceleration of the glider is linearly propor-
tional to the applied force. The acceleration of the
glider is inversely proprotional to the glider mass.
f
The relationship among applied force, mass and
acceleration seemed to obey Newton’s Second Law of
Motion F = ma. Yes. Instantaneous accelearation is
defined as change of velocity per unit of time. As the
incremental time period or the length of the object being
measured becomes sufficiently small, the acceleration
being measured will become a better approximation of
the instantaneous accelearation. One way to include
instantaneous accelearation in the axperiement is to
reduce the distance between the photogates.
M M
a
t
1
t
1
+t
2
t
2
t
3
v
1
v
2
a Fa
(g) (g) (s) (s) (s) (s) (m/s) (m/s) (m/s^2) (N)
240.48 10.3 0.30 0.46 0.16 1.15 0.42 0.79 0.32 0.10
220.48 10.3 0.29 0.44 0.15 1.11 0.43 0.83 0.36 0.10
200.48 10.3 0.28 0.42 0.14 1.06 0.46 0.88 0.39 0.10