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Experimentation with one bungee cord suggested that the rule L = 30 + 0.2wwould be a good predictor of the stretched cord length as a function of jumperweight. The operators of the bungee jump decided to adjust the jump-offpoint for each jumper to the height L calculated from the rule. What reasonscan you think of to question that plan?

User Wildcat
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1 Answer

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24 votes

ANSWER and EXPLANATION

Experimentation with the bungee cord sugested that the rule given would be a good predictor for the stretched cord length as a function of the jumper's weight w:

L = 30 + 0.2w

The operators decided to adjuct the jump off point for each jumper to L due to the rule because this height of the jump off point would be sufficient for any jumper especially after the cord is stretched.

This is because the length of the cord before the jump is shorter than after the jump (due to the stretch) and so setting the jumpoff point to be at point L would mean that they are trying to be safe having considered that after the jump, the cord would stretch to L.

That would mean that the jumper need not worry about hitting the ground after jumping.

User DL Studio
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