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8/12/2019 MEC221- Spring 2014 Quiz 01 Solution
http://slidepdf.com/reader/full/mec221-spring-2014-quiz-01-solution 1/3
MEC221 Mechanics III
Spring 2014
Spring 2014 – Quiz#1
Sunday 30 March 2014Time A!"ed 30 minunes
S!$e A %uesi!ns
Suden &ame'((((((((((((((((((((((((((((((((((((((((((( I)# (((((((((((((((((((((
Questions Figures
1* In he !pp!sie +igure he Anguar
acceerai!n !+ he disc is'
10 rad/sec^2
2* I+ he disc is r!aing a an anguar speed !+
1rad,sec c!c-*"ise. The cenri+uga acceerai!n!+ a p!in !n he circ!m+erence "!ud /e'
1 m/sec^2
* I+ he anguar speed !+ he m!!r A is1rad,sec "ha "!ud he speed !+ he /!dy /e
0.025 m/sec
M!hammad Ta"+i-
8/12/2019 MEC221- Spring 2014 Quiz 01 Solution
http://slidepdf.com/reader/full/mec221-spring-2014-quiz-01-solution 2/3
MEC221 Mechanics III
Spring 2014
Spring 2014 – Quiz#1
M!nday 31 March 2014Time A!"ed 30 minunes
S!$e A %uesi!ns
Suden &ame'((((((((((((((((((((((((((((((((((((((((((( I)# (((((((((((((((((((((
Questions Figures
5!r he +igure ! he righ he $irica speed !+he r!d A may /e gi$en /y he reai!n'
l.w c!s(θ)
6* In he !pp!sie +igure i+ AC is angen ! hedisc and he anguar acceerai!n is rad,sec72.
8ha is he aceeerai!n !+
15 m/sec^2
9* 5!r he !pp!sie +igure "ha is he anguar
speed !+ he arm C
2√
2 rad/sec
M!hammad Ta"+i-
8/12/2019 MEC221- Spring 2014 Quiz 01 Solution
http://slidepdf.com/reader/full/mec221-spring-2014-quiz-01-solution 3/3
MEC221 Mechanics III
Spring 2014
Spring 2014 – Quiz#1
Tuesday 1 Apri 2014Time A!"ed 30 minunes
S!$e A %uesi!ns
Suden &ame'((((((((((((((((((((((((((((((((((((((((((( I)# (((((((((((((((((((((
Questions Figures
3* The angenia acceerai!n !+ a p!in !n hecirc!m+erence !+ he disc "!ud /e'
10 m/sec^2
:* I+ C is m!$ing a a c!nsan speed he
anguar $e!ciy !+ he arm A is w1 rad,sec
c!c-*"ise and he anguar $e!ciy !+ he arm
C is w2 rad ,sec c!uner c!c-*"ise. Theanguar acceerai!n !+ he arm A is'
w22
5!r he +igure !n he righ he magniude !+ he
$e!ciy !+ he p!in is'
1.2 m/sec
M!hammad Ta"+i-