quiz3 - Math 21A Quiz 3(Waldron 0 f 0 ‘ Name WOKQ’VICWS...

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Unformatted text preview: Math 21A: Quiz 3 (Waldron 2/21/08) 0 f 0 '* ‘ / Name. WOKQ’VICWS Score. 110 Graded. l A This is a closed book, no calculator quiz. The figure below shows the velocity v = ds/dt = f (t) of a particle moving on a coordinate line. 1. (4 points) When does the particle reverse direction? 1 paws “,ka t: Z t 2* 6/ ,1 pdwfikfi 3R t710 (\3 ¥VL&CAK(€.(Q 2. (4 points) When is the particle moving at a constant speed? M“ "\ Ame, \WU‘: *~e vva \ C 3,. 5 ) "Z (WWW £0“ \‘AJCWV‘A “ML “A (0'1“? 3. (4 points) When is the particle not moving for an instant or more? f e17, e : c, 1.: (o ”P”"‘"‘&” ““3“" 4. (8 points) Graph the acceleration, where defined. A a" (‘20 r ‘2 X'h‘k pa “*3 551%“ / Ll 3:» /” Mind elS e... L Po‘gwkg 9&6 k x9» 309 “Swan/CT (3 61¢: w‘zs c fifltK MW ,4 Jpaf shaped [x “‘9 3 '0 1 2 3 4 5 a 7 a 9 1035 ...
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