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#32 Elastic Band Specifications
| #32 Rubber Band |
|
|
|
| Average Spring constant |
k |
88 N/m |
| Initial length |
xmin |
80 mm (3 inches) |
| Maximum extended length |
xmax |
460 mm (18 inches) |
| Maximum length change |
Δx =
xmax -
xmin
|
380 mm (15 inches) |
| Theoretical Maximum Energy |
0.5*k*Δx2 |
5.02 Joules |
| Maximum Energy In |
Measured |
4.08 Joules |
| Maximum Available Energy |
Measured |
2.02 Joules |
| Mass |
Measured |
0.41 g (+/-0.02 g) |
| Available-Energy/Mass |
|
4,925 Joules/kg |
|
| .357 Magnum Bullet |
|
|
|
| Mass |
Winchester |
9.4 g (145 grains) |
| Energy |
Winchester |
725 Joules (535 ft-lbf) |
| Energy/Mass |
|
77,128 Joules/kg |
|
For more detailed information on the actual performance
of several #32 rubberbands, see the
measured data.
Last updated
11:49:28 AM PDT, Monday, October 23, 2006
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