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Machine Elements

# Machine Elements - .I-IE 338 limm l 9 35:1 I You are to...

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Unformatted text preview: .I-IE 338 limm l 9 35:1!) - I. You are to bungee jump from a bridge 200 feet above a river. There are two conditions you want to achieve: 1 ] As the bungee finally stops you. you would like to barely touch the water in the river. 2‘: As the bungee stops you. you do not want it to pull on you more than live “G”, or ﬁve times your weight (it seems you are an extreme bungee jumper.) You may ignore the weight of the bungee cord compared to your weight. As for just touching the water in the river, you may ignore your height {i.e. how tall you are) and consider yourself a point mass. Hint: This problem should not require nearly the amount ol‘spaee provided to write the solution a) (20 Points) How far can you Free l‘all before the bungee must begin to arrest your fall? .j. I. 1 '"W‘LQJ'l/W ‘3. --v- )1\ ﬂ I; L if VI ’13? 7:2 ._l.. 1- ( f \I L: lrxl \W'u' -" ”\ " ' f" ) >< / - 2.1.. ME 3.“ Hum: I U 33 If! h} (20 Points) What is the required spring constant (“k”) ot‘the bungee cord in terms of your weight? Be sure to give the units of‘the "k" you determine. rm V 46 67W .Pe :3iye w: :50 /6 (filial? zoo/‘5 43%) [email protected]&[email protected]# 5;; a 626 {A as 3'1 3M ﬂm M (W 5‘1 L56 6,75 /6 V6 ft 5 mow an/I’Iiﬁ éb “gm 35500 - Em. 35 ...
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Machine Elements - .I-IE 338 limm l 9 35:1 I You are to...

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