Exercícios

-t) ;EM" = O:
VI (7.. L.ff t)ú:6 IX -t-(L501bXIVft)
/

ú))

o:

- (Suou U,)(7 H)+ 2D (IZH)= O

SOCúr.b
10/-[- ~

]) =' /"f':lB.3

-(v/+-

IO'f.17)Wex:

(I)

I

11'

B

C
1 C.

Lr;=

2 (12S9)+2 {S:5"1,.)-1/,77-11f.s-3
Ld

C

W

.De pni"t of

,'H, S,ound. fr-,;n, B +u

)j

=0

-

ihtcr.sccJion

c

::- 2.3"+0

o

r

4.6
0

p=

in:s

'ZM

-;;. o P=23.4Ibj'

+2.3.~jb

.'Replcu:...

K=-I- 6,OIf

11

-}

c..p

(a.)+~LMB=D:
(20 }çN)(2.b",)+

-(20kf/)(

J

4-.6

B;

d30

h-r~

+)

2.Um

~I

Z!"IEl:=

Ú'ble

1.

o:

(J.{-

(3 f::N 0.5

(3
1)

ktJX

=

-I-

z. 75....,) - Te (2.25",)
Q:=Jlki'l-3!ê

nO!-!D ~e "i/aLi()

(Df' cabl" a.f j) noi-

fo

Fo, ne.i1her ca.ble

4-.9

Wc

For ~

sh •• 1f

be s/t1.c~

~::

~./.f k.N)

Q::

/0(;.6 ktJr

For

5js..(i) cmd

C1/1-

~

Cl,)d

-

os kiY

(3 m)

= ()
(I)

o. (0.7Sm)

= c)

(2) frtJrn 7;;::0)0'1'-.1 from

fo Ix- sltltk; lJh' r; (2.25m)

- L2
0.5' I..N f' 0.7')-7;

m)

=0

-;20 -2-1.0- b'+. b

-/

0.75".1

Q

B. -== + /06. 6 (f. I'!
)'

,,~

fB

r

A

hr'

2::::

1dlfl'wJ~ cbrarnd il1 Prel,o lf.8: O.S k;J :: Q ~ 3.5 kN ~

39

3~11:1/~N
T

Io.~':' ().75~
I
•L
+') '2 M", =0:

Q.

T

-D

j)l

1
(2.Z~"')-

Q

(I)

(2.2:)M)-Q((). 75'",)=

fM-

,'1-1,:: foa.d"~'S

-fufj-ddíc.1!.

íO'"

f(]fN'1

-'

_

_

')

(b)

8 ::500 N j E -=- SOCJ ri

.8
B
L

13 (0.2Srn)-2o!J
B= 800N
j.
BOON

-=6:

2C0 I).""

~O·

ª :::

::800 N ~

(c) cr>

-;

'Yr(bt=

~

1
6m
1. é\.f- A Mu1S

rnvst be

~

.:D.

Conc.1-t1

rá.>1éJ

rad/us

+ i. tz,;.. [} -= %
.tJ.,.,.? i3 + tltn f3 = {
501v,'''::. '07 tri';(: ftJ;; ();- o.{,B llf
'*' 4-,61
1- fzu13fJ

/---,

LeI-

/

E b: +hc

?o(rJf

/

~f infrrftt-

of ff,~ cf/6f1, 11

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