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The photo at the right shows a six-year old child bouncing on a
trampoline. The trampoline basically acts like a spring, catching
the child, storing its energy, and returning it. The photo shows
the child at the top of her jump. If we assume when the trampoline
catches her it stretches halfway to the ground, estimate the spring
constant of the trampoline. Be sure to clearly state your assumptions
and how you came to the numbers you estimated, since grading on this
problem will be mostly based on your reasoning, not on your answer. |

Page last modified December 11, 2010: PE39