A bungee jumper with mass 66.0 kg jumps from a high bridge. After reaching his lowest point, he oscillates up and down, hitting a low point eight more times in 35.5 s. He finally comes to rest 28.0 m below the level of the bridge.(adsbygoogle = window.adsbygoogle || []).push({});

Calculate the spring stiffness constant of the bungee cord.

N/m

For this part i figured i could solve for period (T) which would be the 35.5 sec /8 whihc is 4.4375 s

and then i used T=2pi* (m/k)^1/2

and with that i thought i could solve for K

that comes out to be ....k=(4pi^2*mass) / T^2

so k=132.3 N/m

Calculate the unstretched length of the bungee cord

I could either use T= 2*PI*(L/G)^1/2

L=(4.4375 s^2 * 9.8)/4*pi^2-4.88 m ....but thats wrong

OR I COULD USE ---f= 1/2*pi *(g/l)^1/2 ...

L=(2.46*g)/f^2=477.69 m

and just solve for L ...rite?

but when i plug everything in i keep getting it wrong

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# Homework Help: Pendulum Harmonic Motion Help Needed Asap ( work is shown)

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