1

拉力（钩码总重）F/N

0

0.5

1.0

1.5

2.0

2.5

3

3.5

4

2

橡皮筋的总长度L/cm

4.5

5.1

5.7

6.3

6.9

7.5

8.1

8.3

8.4

3

橡皮筋的伸长量ΔL/cm

0

0.6

1.2

1.8

3.0

3.6

3.8

3.9