Exerccios propostos

Livro do Prof. BrunettiExerccios 1.1 1.3 1.5

1.1 - Resoluo

1.1 Resoluo (cont)

1.2 Resoluo

St) ou(s

cm,,

SI) e SMK(s

m,

)m

skgf ou(mutm

g

mkgf,

*

4

2

Hr

2246

26

4

3

302

1016101016

101682105

8210820

8201000820

==

==

===

===

1.3 - Resoluo

1.3 Resoluo (cont.)

1.4 - Resoluo

Pa) ou(mN,,v

sPa ,,

23

4

616102400830

008308301010

===

====

1.5 -

Resoluo

1.6

1.6 - Resoluo

sm,

,,,,v

,,)(v10100,5

:se-tem repouso em cilindro o Supondo4-

122050090800010

1050101050

050090

21091010

8000

4

2

2

=

=

1.7

Resoluo

1.8

1.8 - Resoluo

3

2

21

2

22

21

16800

320020000408020000

10802000080

80

804040

40

21010210

10

mN

L40,1

L,VA

V)( AVV

:que se-tem VV e VG Como

AGGATG e AGT

AA,

FF

L40,1V e L,A

2

22

2221

21

1

1

2

=+=+=

+=+=

+===

+=+=+=

===

==

1.9

Resoluo

1.10

1.10 Resoluo

R2

R3-R2

n

F*F

R2-R1

cm,m,h,,,

,h

,h,,

,RFMcten Como

FF que

afirmar se-pode RRRR Como

hRRRRnF

hRRRRnF

m

*

*

52310523

3030230100280010210106010

30302101060

30100280010210

2

22

22

2

4

2

24

2

1223

212

2

223

2

=

=

===

==

=

=

1.11

Resoluo

1.12

1.12 - Resoluo

G

T

MOV

cF

ctesmv == 2 NT

,),(

T

LDvGFGT ic

48

25010

25025021050

23

=

=

==

1.12 Resoluo (cont.)

Nm,,,MMMMaigualserquemotorseja,ourotao,dadireona

Mmomentoumexistirdevequeconcluirse-podeMMComo

Nm,,,),(

DFM

Nm,,dTM

2

i

104252

52250250

102

502501010

2

4221048

2

1

12

23

2

1

===

>

===

===

smvv *

*10

2552 ==

F

2iD

T

2d

2dT

n

*v

2iDF

1.13

1.13 - Resoluo

1.14

1.14 Resoluo

001040005010500

100251040012550050500050

2005010400150

5050050150

12502010

2010200

1010521

2

22

22

2

2

===+==

===+==

====

+=+==

==

=+======

+===++=

,dydv0,1m ypara

cmdina

s,

dydvm, ypara

cmdina

sdydv0 ypara

ydydv e y-250yv

sb

msaa,,0,1a2,5 :(1) em (2) De

(2) a,bb,adydv0,1m ypara 3)

0c0v0 ypara 2)

(1) ,b,a,sm2,5v0,1m ypara )

cbyayv

2

2

1.15

1.15 - Resoluo

1.16

1.16 - Resoluo

22

2

2

03031013351

23750

1317504243

42200

2432225

2

mN,

dydv e

sdydv que 0 yparay,

dydvb)

m em ye sm em v com yy,v

sb

ms,aaa :(2) e (1) De

(2) abbadydv2m ypara

(1) abbasm5v2m ypara

smc

sm2v0 ypara

a)

=====+=

++=

====+===

=++===

===

1.17

Resoluo

Resoluo (cont.)

1.18 - Resoluo

%,%

)()(%

3217

100

323287200000

293287150000

323287200000

1001

21

==

1.19 - Resoluo

1.20 - Resoluo

33844910

27338287441000

mN,

)(Car+= o

1.21 - Resoluo