Mass, m, on hanger/
(x)
Mass, m, on
hanger/kg
(x/1000)
Stretching
force/N
(mass/ kg x 10
Nkg)
Initial length of spring Final length of spring Extension, e, of
or Scale reading, or Scale reading, Spring (l,-/m
Spring constant
Force/extension
N/m
mm
m
mm
0
O
0
17.5
0.175
175
0.175
.
0
20
175
0.175
17.9
10
175
0.175
18.8
50
175
0.175
19.6
BO
17.5
0.175
20.6
100
175
0.175
21.3
120
175
0.175
22.1
140
17.5
0.175
23.0
160
17.5
0.175
23.7