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hw1_2_ans - Homework Assignment 2 Math 2171 Differential...

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Unformatted text preview: Homework Assignment 2 Math 2171 - Differential Equations Section 002 / 007, Spring 2008 Name: Due: Monday, 01/28/2008 dy / 1. (P3, page 16) Solve the initial value problem: ~— 2 fl (4) == 0. l> 0"” y, <5 W [S \ 63-1) 1 19::Q92j’1 C, _;:; , l ’ f» ,. 11.971: f . O 6/ t" 4 \\ \ l 3. (P10, page 16) Solve the initial value problem: ig- = use”, y(0) = 1.‘ 65”” 16.1.1; (7&1 féij/{K \ ME?” :M’“:0{% ’11 US“ l MlVl Q’ZXI/lk 2”) \j: " £2; \ A xeflxznél 1 . 11- 1- —» 1— w. 5.3/1.1? .. % :wbm01~Hia “up“‘"yg §Mwwflw id (C51: ._,, {C2 +89; «1C, :3»; A. K Kw/‘M’M’ >/ 4. A moving particle has acceleration a(t) r: 5, initial velocity v0 = 1 and initial position :60 2 2 Find the position function w(t) of the particle. ar/el : [11(61651 ”“ [5’14 3 §f+ V2 :31”? 11> -: / :11)11~: 5111121 1. 1&l::%y+€+;.l 26) 5. (P14, page 16) A moving particle has acceleration a(t) 2 215 + 1, initial velocity v0 = -—7, and initial position :80 = 4. Find the position function x(t) of the particle. of 75 111 before it came to a stop. The car in question is known to have a constant deceleration of 20 m/s2 , 6. (P31, page 17) The skid marks made by an automobile indicated that its brakes were fully applied for a distance % under these conditions. How fast - in kin/h - was the car traveling when the brakes were first applied? 3"" Mfg?) :2 jrm 051’ a; Mgtt five“ ?5 f5) 7"“ f ”Eat “(A 3&3) 05% GLUC) 3: "QM/3 ...
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