exam1_soln_ch2_3_6

# exam1_soln_ch2_3_6 - 1 Write a very short answer to the...

• Test Prep
• 4

This preview shows pages 1–4. Sign up to view the full content.

This preview has intentionally blurred sections. Sign up to view the full version.

This preview has intentionally blurred sections. Sign up to view the full version.

This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 1. Write a very short answer to the following questions. (a) Under what conditions is angular momentum conserved. -L ﬂ. : M 5: TC 44cm. 15 o: adrenal 49’19‘1 i 34‘3"“:- Momm‘l'u’v‘s u H cwuﬁv’ccx. (1)) Brieﬂy describe why Newton’s third law only applies to central forces. Can-Lra‘ for cc 5 OJ“!— pafcts 'I' ka+ moi” clan S 0» hm. Canned-VS "{Lu. duos Luau-L5 . [[0 ’H‘L 4):)an gala-Lei. ccwcvs 'G‘orvx ”HQ; has) d‘nn ’HL !“ch (.39th 1%" LL 0? folk \HN Alﬁe 1;. Kick 4‘, ecu/L VII-2f . 2. A paxticle of mass m is subject to the following force: F 2 11(933 m 4.112 + 3:13))": Where A is a constant. (:1) Determine the points when the particle is in equilibrium. (b) Which of these points is stable and which are unstable. (0) Is the motion bounded or unbounded? a) £1”; than-um bcgur‘s 1.4.:be F10 5" X3" “Wt-E'Tbtb C“) K(X"3(V”3ﬁ 3. A ball of mass m1 is dropped from a tall tower. The force due to air resistance on the bail is __ F = k1m1v2, where k1 is a constant. (a) What is the terminal velocity of the ball. (b) What is the velocity of the ball as a function of time? (c) If a second ball of mass m2 and k2 is dropped at the same time as the ﬁrst, what is the separation between the balls after a time t? kw T‘rm‘ﬁfkl ULtod'L) ”VJ-"4“. MIN-1 Z—F 1"- 5 é '3? Fv“ ”‘3 4. A small block of mass m is placed in a spherical bowl of radius R. (a) If the block is allowed to slide without friction, show that when the block is moved a small distance away from the bottom of the how], it will exhibit simple harmonic motion. Label all forces and appropriate angles on the diagram below. (b) Determine the angular frequency of the motion. c Now assume that there is a frictional force, F : be, where b is a constant and v is the f velocity of the block. Determine the value of R for which the block will stop moving the moment it reaches the bottom of the bowl. The block’s initial velocity is zero. 5‘4 ‘Qr- 5,wa IﬂirManl‘Q. M's: 3"} DE' + mfxeo c) Fclc‘llm =3; 5.: M =7 me + 526 + ”~39” .L x 4 Z >E+ 0%" :0 =9 2m '5: W {3‘ m P t J’— # 3 loo-l ‘Qr— “I'll-{cal obsmmrir‘s {5" L" #7 2.!" H R ‘fm" R. H“ K7— T; ...
View Full Document

• Spring '08
• none

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern