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GUIA N° 3 DINAMICA Y TORQUES 2013

NOMBRE: _____________________________________________________________________ FECHA:

______________

1. Un carr !" #$%$"&" '$" (" )$"*" cn ra+,!"- cn(&an&" c)+"&a $na *$"&a ar"!"!

!" $na +,(&a c,rc$ar /$na !,(&anc,a !" 200 ) "n 2.0 (. /a c$ "( a ra+,!"- +r)"!,

/5 S, a )a(a !" a$& "( !" 1.0 6%7 c$ "( a )a%n,&$! !" a 8$"r-a c"n&ra '$"

)an&,"n" "n $n c9rc$42. Cn(,!"r" $n +n!$ c;n,c cn $na +)a!a !" %$ra. D"&"r),n"7 /a ac)+n"n&"( ?r,-n&a @ *"r&,ca !" a 8$"r-a "#"rc,!a +r " aa)5r" (5r" " +n!$

/5 a ac""rac,;n ra!,a !" a +)a!a.

3. Un carr !" )n&aa r$(a &,"n" $na )a(a !" 00 6% c$an! "(& &&a)"n&" "n !

+a(a#"r( /=a(" a (,%$,"n&" >%$ra. /a S, " *"?9c$ &,"n" $na *"c,!a! !" 20.0 )( "

" +$n& A7 c$ "( a 8$"r-a "#"rc,!a +r a +,(&a (5r" " *"?9c$ "n "(&" +$n&4 /5

c$ "( a *"c,!a! ),)a '$" " *"?9c$ +$"!" acan-ar "n B @ cn&,n$ar (5r"

+,(&a4

. Un #$"% !" $n +ar'$" !" !,*"r(,n"( (" c)+n" !" $na +a&a8r)a c,rc$ar %,ra&r,a !

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+$n& !" r"(5aar c$an! " 5)5"r "(& a K )"&r( arr,5a7 C$a "( " c">c,"n&" !

8r,cc,;n "(&&,ca "n&r" a "(ca"ra @ " ($"4L. S,r (& (" +n" ($ ar)a!$ra @ (" "(&a5"c"n !"(!" " ca(&, !" ($ >" crc" "n (

5('$"!a +ara r"(ca&ar a !a),("a( !" ( !ra%n"( a)"n&a5")"n&"7 ($ a@$!an&" 5a#

" +$"n&" "*a!,- !")a(,a! "#( @ >na)"n&" !"&$* 20° !"5a# !" a ?r,-n&a. S(& @ ($ ca5a (" !"&,"n" c$an! ($ c"n&r !" )a(a c)5,na! "( !" 170 ) !"(!" "

"&r") !" +$"n&". E +$"n&" "( %$ra. En ca!a %anc?7 a &an%"n&" a a ca!"na 8r)a $n n%$

2.0° cn a ?r,-n&a. Enc$"n&r" a a )a%n,&$! !" a 8$"r-a '$" "#"rc" ca!

%anc? (5r" a ca!"na @ 5 a &"n(,;n "n a ca!"na "n ($ +$n& )"!,

S$%"r"nc,a: +ara " ,nc,( 57 "a5r" $n !,a%ra)a !" c$"r+ ,5r" +ara a ),&a!

!" a ca!"na.

10. Una n$"*a "(&$8a !" cc,na !" G"n"ra E"c&r,c &,"n" $na )a(a !"

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11. Una "(ca"ra !" &,#"ra !" +"( !"(+r"c,a5" (" cn(&r$@" c) (" )$"(&r

"n a >%$ra . Un +,n&r !" L0.0 6% !" )a(a "(& !" +," "n a "(ca"ra7 a 3.00 )

!"(!" a +ar&" 5a#a. S$+n%a '$" " ($" n &,"n" 8r,cc,;n. Enc$"n&r" a

&"n(,;n "n a 5arra ?r,-n&a '$" cn"c&a a( !( ),&a!"( !" a "(ca"ra .5 a

8$"r-a( nr)a"( "n A @ B7 @ c a( c)+n"n&"( !" a 8$"r-a !" r"acc,;n "n a

n,ca 5,(a%ra C '$" a ),&a! ,-'$,"r!a !" a "(ca"ra "#"rc" "n a ),&a! !"r"c?a

S$%"r"nc,a: Tra&" a "(ca"ra c) $n ( 5#"&7 +"r &a)5,n ca!a ),&a! !" a

"(ca"ra +r ("+ara!.

12. Una ("a $n,8r)" !" +"( F% @ anc? 2 c$"%a !" $na *,%a ?r,-n&a,%"ra cn 5,(a%ra "n a +ar"! @ ((&"n,!a +r $n ca5" />%$ra. D"&"r),n": a a

&"n(,;n "n " ca5" @ 5 a( c)+n"n&"( !" a 8$"r-a !" r"acc,;n '$" "#"rc"

+ar"! (5r" a *,%a7 "n &r),n( !" F%7 !7 @ .