n=7.
results with those in step d.
[Include all related analysis on a separate page.]
+
Xi
0
30
60
90
120
130
150
?xi
Yi
9.8±0.5
24.0±0.8
42.0±1.0
54.0±1.2
70.5±1.4
79.5±1.5
84.3±0.9
?yi
xi2
0
900
?xi2
xiyi
0
30\cdot3.8\approx0
?30\cdot24\approx
?(xiyi)
y=mx+b
m,b-?
2. The position, y, of an object falling from rest is given by y = y0 + ½ gt², where, y0 is its
initial position, t is elapsed time, and g is the free fall acceleration. If v and t are measured
