MEC221- Spring 2014 Quiz 01 Solution

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-




Spring 2014


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-




Spring 2014


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-

Documents

MEC221- Spring 2014 Quiz 01 Solution