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TO OBTAIN A VALUE FOR THE ACCELERATION DUE TO GRAVITY BY FREE FALL.
In an experiment to
measure the acceleration due to gravity g by a free fall method,
a student measured the
time t for an object to fall from rest through a distance s.
This procedure was
repeated for a series of values of the distance s.
Calculate a value for
g by drawing a suitable graph.
|
s / cm |
20 |
30 |
40 |
50 |
60 |
70 |
80 |
|
t / cs |
21 |
24 |
30 |
31 |
36 |
39 |
40 |
SOLUTION
|
s / m |
0.2 |
0.3 |
0.4 |
0.5 |
0.6 |
0.7 |
0.8 |
|
t2 / s2 |
0.044 |
0.058 |
0.090 |
0.096 |
0.130 |
0.152 |
0.160 |
