310%20test%20two%20sp06

310%20test%20two%20sp06 - MECH 310 14Apr 06 Second Hourly...

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MECH 310 14 Apr 06 Second Hourly Examination CLOSED BOOK AND NOTES w6@ NAME 1. [30 pts] A BATTLE OF WITS To add teeth to the weed-out process, ME juniors are required to verifi their own measurements (in lvE 322) of b and K for an elastic rope. Each student is fastensd to his owrl rope, which is tightened until taut. At t : 0, the student falls through a trapdoor in the tower to the ground, 100 meters below. Sad to say, it's all hit or miss! The object, of course is to touch the ground safely, but quicker than anyone else. a) Henny-Penny, who sure does knowher systems, has matched her (unknown) mass to K and b in just the right way to land safely and faster than ANYONE! How long does it t illl{t t t' I n Foet I bnK 0 v A ' -IAFP aatq /\/* t ld 0 lrl take her? [20 pts] ,;l#T'il ^rt r - n T - -Ir"",,ff A M *W^ffi+^frx=T 'rz'rFnn'r- | /'^;T#Bv 'dt (iilat YFLIL-' fu =s -' . 1- 'F- -' ,^r,t'= o, JlilcL ,l | &o(Ttcpt Qanott-) ,i w;, lrlo i lo ) N^= b) Turkey-Lurkey, the class drone, blunders onto a strategy which beats EVERYONE.
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310%20test%20two%20sp06 - MECH 310 14Apr 06 Second Hourly...

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