Concept explainers
Hooke's law, which holds when a spring is not stretched too far, signifies that the extension of the spring and the applied force are linear ly related. The proportionality is parameterized by the spring constantk. A value for this parameter can be established
TABLE P20.49
Experimental values for elongation x and force F for the spring on an automobile suspension system.
Displacement, m | 0.10 | 0.17 | 0.27 | 0.35 | 0.39 | 0.42 | 0.43 | 0.44 |
Force,
|
10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 |
FIGURE P20.49
Plot of force
experimentally by placing known weight son to the spring and measuring the resulting compression. Such data were contained inTable P20.49 and plotted in Fig. P20.49. Notice that above a weight of
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Numerical Methods For Engineers, 7 Ed
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