Quiz2[Fall_2010-2011] - Solution for Quiz Two Physics I...

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Solution for Quiz Two- Physics I Fall 2010 Physics I _ Chapter two Quiz 2A A person going for a walk follows the path shown in Figure below . The total trip consists of four straight -line paths . At the end of the walk, what is the person's resultant displacement (magnitude and direction) measured from the starting point? P o. Start 100m ' ~I x-r?, deparnyent , St R -= - A - r~ + ' C - t " -"'D I" '" ~nvpo''4 .. ~\: : ~ iII\ -ISoSill3 - : J ~ - ' 1;- "2 . 0" '5\•..• . ~'j -:: . . \ B 'P1'- - - ::. ~ - +13)< - \: c;. . - I;D .e l<'::r= A~ - t - 13~+c'j +1)'::) - =- - '~il -= - - 2 0 "Z. ..
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Physics I - Chapter two Quiz 2B A ball is thrown up vertically with an initial speed of 9.0 m / s from the roof of a building of height 5 . 00 m. (a) What is its speed just before it strikes the ground? (b) How long does the ball take to reach the ground? (c) What would be the answer to parts (a) and ( b) if the ball was thrown downward from the same height and with the same initial speed ? 1 .. 1 .. . ~ -= V.~ -"2-"] \ . Cj-' - j~) To . \<JL (~J~ '" 1-\ 0\ I~ "U~ -:::. . :e .. t ~ '9 - c~L,": ' 5" " \[" -.:: .. ~ II . \ . I . s I ~\- c J. . ' . \ ~ ~,~ . ",~\ ~'i''V\ ~~ \) , - "' . 1 "l . -= . \ ~)1 . -~) (ct..,,) Lo- <;'1 ~ -= - :t \~ ''' - \ 'II.\\ . s . \~ \ -:: .. \ ~ , " ~\ s ' " J~\j~_ ~~ . - - t -_ ~,~- \l ~ h-ev-~ \J~ - 13·t - nl!s ~ - tJ~ ,' - \) q. ~ @ 1 . . u\ \ 'Y-~ - =- \j a - < . :3 \ . ~ - -" ~) " '-. ""_ o l ~ \ .. ~., ~ ~ M . I '\1 0 -= - 9 lI.I . / S '\i'i .. __ ~ o..~- ~J(~ ' '1)[0 ~ Sj . ~ -:: - :: . \ ~ -' - \ ~l ) \ - .... \ \ -= . \ ~ - ~ . \ . ~ 'l. -'t: . "~ '" ~ - .... i -:: . " ' - ! . ., _ ~ \: . ~ _ - \: . ." -= - ' - J <:> - .. J - +-:J '(~' -. \ . c:;s-r~,- ,- C!\ ~ .~ / ~~,/" ' - I.•• -= - - ~"lI . \\s -5 ~ <" ' -t"54) - - \s·~ · ,\t.\\r ~ . I\ · n I I I I ' Yo:: . ' 1'1 r: S'''"' 'Y I I :
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Ph y sics I - Chapte r two Qu i z 2C T h e v el o c ity of a particle mo v ing i n one dimension varies as sho w n in the accompan yi ng graph .
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