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Unformatted text preview: 1. A haaehah dia111ea1d ia a. equate with aide [JG feet. A hatter hits the hall and tuna tewaael that haae with a. speed at 2.4 feet pet aeeeatL At what rate is hie thetaaee h'a111 aeee11d haae deel'eaah1g when he is haltwaa' ta that hate? Let a: be the distance freiii 1st base and e be the distance item 211d base. Then there is an equation:
3:2  QUE = e2 when the runner is halfway te 1st, this is:
4.53 + at}? = [*2 lines = a?
e a 100.623 Te ﬁnd %, take derivatives ef the above equation: as ale
2 — [i=2—
Ia+ Cat (mama) = menses)? gm 10.1? it I see . 151111111111, s11i11 A is 100 k111srss1 11f ship B. Ship A is ssiii11gssi1111 s1. 35 ki111111s1s1s ps1 i111111', s..111:i s11i11 B is sailing 11111111 111. 25 1~j111111s1s1s 111211111111. Hss issi. is the distsnss betssen the
Ships ﬂhﬂllsil'ls at 1:111 11111 111111. day? Let a he the distance travelled hv ship a and h be the distance travelled hv ship B. Let the
distance between them be e. Then van have: (a+h]2+lﬂllﬂ=cg Using the fast that after 4 henrs a = lﬂﬂ and l: = 140. Therefere,
2409 +1002 = e2 02 = evens
e = 2a} Taking the derivative ef the eriginal eqnatien, we have: a at a.
2[a+h) (Egg) +ﬂ=2ed—: afaaﬂjuiaa + 313] = 233:}: = 52133
are as _
F: g 5538413 1in—1ch A ladtlel' lﬂ feet lnng 1'eata againat a vertical wall. If the hattunn at the ladder ah'tlea away fnnn the wall at a agreed at 2 feet per eeennd, haw faat la the angle between the tap at the
ladder antl th_. wall ehangjng when the angle in radiant? Let 6' be the angle between the top ef the ladder and the well, end I the distance them the
ladder te the well. Then we have: Taking derivatives: Plugging in whet we knew:
it old _ 1 “mm—10
ﬁee_1
.5 Quit—
_e em m .2828 red/see 4. The eeertlinetee at e. partiele in the 111etrie iry—pleiie are diﬁei'entiehie iuiietieiie ef time t with — —1 1T1 and = —5 Hew feet the pertiele‘t dieteiiee ii'eiii the ei'igiii
'1? changing as it passes thi'eugh the paint [5,11 The thetehee between the pertiele and the erigin is given by: Taking derivatives we hate: dB nit ﬂy — E51? + 2; m: e: ...
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This note was uploaded on 05/17/2011 for the course ALGEBRA 098 taught by Professor Johnson during the Spring '09 term at Grand Valley State.
 Spring '09
 Johnson
 Algebra

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