test0231 - Page 1 Test #3, PHYS 1111, Section Oct. 30,...

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Unformatted text preview: Page 1 Test #3, PHYS 1111, Section Oct. 30, 2002, Stancil 5, (12:20-1:10pm) This is a multiple choice test of 13 questions. Give only one answer for each question. Besure to enter your name and SSN on the scantron form. You may keep the question sheet. The moment of inertia about the the center of mass for the solid cylinder 1/2*MRA2, for the hoop MRA2, and for the rod 1/12*MLA2. 1. a The earth's radius is 6.38x106 m, and it completes one revolution every 24 hours. What is the tangential speed of a person standing on the equator? / -== 2 4hvs 8 b(L/Go j a. 232 m/s I~~ IM/"1 {; (\ b. 148 m/ s . == 1< -= 0 I J ~ X (0 /Y1 2- Tl I _ L.j 6 L! 111/1 j (c) 464 m/ s T) _ d. 73.8 m/s -rTf ~ 26,4(j(J 'S. iN :.. 2 1/, T (~)(jOS Vt 2. is ) =- {Yl \ rZ w _ -J An 82.0 kg-diver stands at the edge of a 5.00-m diving board, which is supported by two pillars 1.60 m apart, as shown in the figure. Find the force exerted by pillar A. (c0 1.71 kN downwards ~. 1.71 kN upwards c. 2.51 kN downwards tv! d. 2.51 kN upwards ;:~~a d FA (!,60~) - 0+ == Figure 1 (3jIH) tJ2. o)(7r J/J3Jlq ~~.::- /160 /, 6 (j f1 5.00 m .::f: ;=[7 kif .11 .::- 0 ,[ / . _. '-- 1.60 m B A 3. A torque of 0.97 Nm is applied mass 0.75 kg. Treating acceleration. a. 0.127 rad/s2 11 rad/s2 I c. 21 rad/s2 dO d. 35 m/s2 Qrr r to a bicycle wheel of radius 35 cm and the wheel as a hoop, find its angular Ihoor -= M rc L .£f;-':::: 1 c{ t(~r-vZ.. eX.:::: t(-' 1: -~..r - - Jv1Qt.- =(11 1'&.//52/ --J O(17)./}+1 (0,7) A-))C (), ~ )~z. ...
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