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HW 11

# HW 11 - (10.37 A 35 g rock is placed in a slingshot and the...

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(10.37) A 35 g rock is placed in a slingshot and the rubber band is stretched. The force of the rubber band on the rock is shown by the graph in the figure: a) Is the rubber band stretched to the right or to the left? How can you tell? b) Does this rubber band obey Hooke's law? Explain. c) What is the rubber band's spring constant k? d) The rubber band is stretched 28 cm and then released. What is the speed of the rock? T -31:> -2:0 -t\) La ''"Plctb'(~\ te.V~~~w,'()~ I M~~oJ-) (~ Le.fr(L~~"()0: 1\ J ~ "TU.b be 'r b O;:v)d I ~ ',,\-<e:\-d..ed 1:> kt t ~,,",C<L o.."t W. spy; ')0 ~-rce. Or:> .\-'ho... " e 'i. .w..~ <\<>1'<- y~\:, \,QJY ~d "rV::."-.t b 'fro "0 0.. _ Woo dI~ y 1 o..(~ ~ '»')<u) \- lfQ ~ 'K'l. . ~ h fSf h- > b<) '" ~ 7f- J'> i1<L TO eli d.~f 10,(~- ¥1M t tro'"J -n.. ~ v:. II" 1::,-, I'" ":) P Oy.] K 0") Jv.e. "" 1'0.. -s rn ,''''0 'fI>r (Ie F;P. sJ y I1/) , 11t Y<Ak. be blJrl) d alo",,;p Vt",,1<0, I.. ., .1;:"c~ ~ F5P v~ \IJ}?I ~ \-., ,',> I Me"-'2.. =\ "'" 0.. - V\'C S \"Fe ""'" d (' "4 ~ em f H.?.Ied 0::1 I1p 0 .. k;>< , U:>¥) ~'h. ~I:)'<) ~ e Y)~ ~ :I, 2. z.. "..)1 D,J - '>"0l9j + J. t: 'X L W)19 Z+J.. k::xl... :l.. '"'- 1-2- f 2- f 0"', ..!...t'f) 0-v0/.s )L + i K.(~ 'X)2 :: J. try V(..l+ I v ( 1- l... .J- J L" ~"'JJ DY, f ~ 2..00 'Xlo, 2..8/- ':. 1- ~ 0'Q3S""f."tl. oY I VtL -- i ~~.~-.. W)h~ c] F=~-k'X ar, ~ F ~ - t D?< O'r, IL ~ ~ ~ ~ 2..00 N /"") o.qe- .

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10.41) A 62.0g icecubecanslidewithoutfrictionupanddowna 35°slope.Theicecubeis pressedagainsta spring at the bottom of the slope, compressing the spring 12.0 em. The spring constant is 25.0 N/m. When the ice cube is
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