Sunday, October 27, 2002 (4)

# Sunday, October 27, 2002 (4) - vii-x v e y=3;—x—2...

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Unformatted text preview: vii-x.- v e y=3\/;—x—2+3x—7 _ .3 -111 3'5 APEX +3 e)Answer ii: "E’x/J'Qx 3+3 3 f “I“ 1:2 ”J; [M‘A‘Wﬂ 1+2!" " ijl‘ .L r.- ‘lr I ”a? leH-x’j glﬂi)_i_ ,( 3 W {II-1" why-X ﬁAnswer: 5y: gg _ .7"???— .__/L 1 l} 7%,}; ( 119(1)" 9. An object moves according to the formula y = t3 — 3t , where y is the position and t is time. a What is the average velocity over the time interval 0 s r 5 3? E gnaw-4:13 A» ; LE; 3 at 03 =0 A? 3 ' 6 Answer: average velocity = b What is the instantaneous velocity at t = 1? YOU MUST USE THE LIMIT PROCESS. NO ' CREDIT WILL BE GIVEN FOR SHORTCUT FORMULAS. W 315% {f+},)3»-':(t+h2 - [tie-J hep a . 5%!)‘3'3'LD = ‘ +3t1L+3th3lhgﬂa3h 4243* “)0 &h 7. 3—};33 I 1 1 _ (WI at ‘H: ,3 6 ' hem + 5-H, Answer: instantaneous velocity = g 3 10. Draw a rough sketch of the graph of f ' (x). Use the existing coordinate system below. ...
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