# Photoofmult.choicesolutionspage2

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P"8) A particle moves along the x-axis so that is position atany time tis given by x(A = B - 62 + 91+ 12, During what times is the speed of the particle increasing? (U han iy parhce spgeding up A) tclor2<¢t<3 Find when v) and a(®) 7! g a horizontul axis so that its 12) A particle moves alon ) pa - 1\2.- tq" ,t3+'{'k.1 -91;{' 'k?- position is defined by S(9 What is the velocity of the particle at the time its acceleration is first equal to zero? . A) A0 Find Ame accelerabon = 1< t<20rt>3 have the same signs. B)':'a' V(H:.é)t%_gjfw'# C) T(ZOI'f>3 A b 2 q;o 'k"'%' =0 Q) pe3 3(g%-dx D 70 3 e e of #2 E) felorh3 3(*'%""\):0 E) 7 a4 =0 Birsk whan £=% Bty e e WG ao \ 3 atdl: (rp 1220 Y v(> N . = IS Fer BSEYE RV CERE kS 9) A particle moves along a coordinate Iisne so that its 13) A particle moves along a horizontal Co?rdi.nafe line position is given by 5(A = {35 +4)" _ for so that its position at time #,0 = #= 4 s given by 0= #=10 Whatis theacc)elemfion of the particle S(h= 74-—137613 + 872 + 1. For what times #is the at1:2? Find ol ~ velocity of the parficled ing? - particle decreasing ke >, . N \'\ w @ 540 vit) = 5(%\&4*{); () :C](gx»l) 2 \/cloca"j of parho(L is decreasing ey ) A) 3 1< bis & mga'l\"' stopx.?wluno. B) 360 alg)z (§(3x+0E)= 543 2 L | 4 B) P3 v {4kt + ek o 54 L) - 54{10) = 590 | QAie ) = C) 0«<t<2 OL(#S - (1&2'31'1 4+ o =O b) -~ 10 D) 0«74 S(3£7-FE +d) 2O E) 2<1<4 N £y - 59 G(3p-2) (£-2I=0 \ al)) paa48 —— - =0 AAAS 14) The table below shows velocity of a particle at 10) A parficle moves along the x-axis in such a way that various times #of a particle that moves along a its posifion at any time #is given by x(H= A -88+182 +2 for > 0. At what fime is acceleration of the particle equal o 36? A) 3 Find whea a(x) =306 @ 4 ) - UEP a6k cD)) :2 ai4): et —diri36e=30 E) ) I'Z,Ll""izt LR 204 -4120 co ] £ R E j\ ! | 11) A particle moves on the x-axis such that its position '\ atany time #> 0 is given by x(H = B - 92 + 24¢ What is the velocity of the particle when its acceleration is zero? A) 105 Find hme acelemhon =0 | C% f: VO] = 34200 4 Ly - D) 3 altls o ~IVIO E) 0 k- 2 al£) =0 whkan k=3 So v(3)= -3 horizontal line. Vmso[ 8302 |88 [106]n.0 What is an approximate value of the acceleration of the particle at time #= 22 CAD12 fi/sec? what is Ve appoximal B) -0.8 ft/sec? slope of V&) ak A= C) 16 ft/sec? D) -16 ft/sec? E) 18 ft/sec? AV v (@) v(us) At <= e Q.S'Lf = l.