Newton laws.pdf
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swaL s'notweN dna ecroF
14
v r
. a .
24
.
. .
)1( ..................................................................................... o = F
34
.
)2( ...................................................................................am = F
)2( a m = F notweN 2s/m.gk
)N( 2s/m.gk 1 = N 1
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: xam = xF
yam = yF
zam = zF
IS
)sKM(
N
gk
2s/m
sgc enyD
2s/mc
hsitirB dnuop
2s/tF guls
44
. .
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54
.
.
.
: gm = F = W
. g
.
1
m 3.2 = d gk 042 = m N 031 = F .
.
Q= Fam
0.45gk.m/s042gk031N
m \=== aF
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o22ax
n=n+D 2
D=-= o xxxd
\n=== 2da20.452.31.6m/s ) () () (
2
s 5.4
: n=n+ ota
0.17m/s ) ( ) (4.5
1.6m/s1.6m/st
=--=- o an-n
\=
Q= Fam \=-=- F0420.17071N ) () (
x . )c(
3
gk 063 . n= o021mk/h s 71 n=26mk/h
.
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/ / Qn=n+ ota
to a
n-n \=
) ( ) (=
-=\
71s 26mk/h021mk/h
0.59m/s2 1mk
0001m0063s
1hh.s
=- 3.14mk
=-
Q= Fam \=-=- 2 F063gk0.59m/s043N ) () (
. 54
: .
.
. 1
ESF SEF
:
ESF = SEF
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2
)gm = w( )N(
)N( :
3
w . F
swaL s'notweN fo noitacilppA64
:
-1 .
. y ,x -2
. -3
4
. C ,B ,A gk 51 = m . AT ,BT ,CT
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x ,y )b( x ,y . o = F:
.o = xam = XBT + XAT = xF
o = yam = yCT + yBT + yAT = yF )b(
,AT 668.0 - = 03 soc AT - = xAT
,AT 005.0 = 03 nis AT = yAT
,BT 707.0 = 54 soc BT = xBT
,BT 707.0 = 54 nis BT = yBT
dna
CT - = yCT ,o = xCT
)c( o = yF
gm = yCT
N 741 = )2s/m 08.9( )gk 0.51( gm = CT \
)x(
x y
o = BT 707.0 + AT 668.0- x
o = CT BT 707.0 + AT 005.0 y
CT N 231 = BT , N 801 = AT
5
P GK 5.7 = M : ( ) N12 =
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51 = q ( ) ( )
)b( ( ) :
am = q soc P = xF - x
yam = gm - q nis P + N = yF - y N96 = 51 nis )N12( N47 = qnis P gm = N \
27.52.07m/s x
12xsoc51m =q== aPsoc
6
gk 0.81 = m ( . ) ( . ) 72
.
. )b( ( ) .
Q= Fo
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x \=-q= xFTgmniso
y yFNgmsoc \=-q= N08 = 072 nis )2s/m 08.9( )gk 81( = q nis gm = T \
N 751 = )072 soc( )2s/m 08.9( )gk 81( = q soc gm = N
( ) :
am = F
x xam = q nis gm- = xF yam = qsoc gm-N = yF
o = ya y .x . N751 qsoc gm
2s/m 54.4- = )72 nis( )2s/m 08.9(- = qnis g- = xA
. 7
gk 2.27 ( ) ( ) .
.2s/m 02.3
o = yF ( ) o = gm N = yF
N 807 = )2s/m 08.9( )gk 2.27( = gm = N \
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2s/m 2.3 = a ( ) am = yF
am = gm N = yF \
)2s/m 02.3 + 2s/m 08.9( )gk 2.27( = )a+g(m = N \
N 939 =
.
74 swaL s'notweN fo snoitacilppA eroM
.
8
. 1m . 2m
. .
. .
: ( b )1m
)1( a1m = T = xF x
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)2( o = g1m-n = yF y
: )c( 2m
)3( a2m = T g2m = yF
:
gmm
am12
2
+ )4( =
gmm
Tmm12
12
+ )5( =
9 )2m ,1m(
. ) ( ) . enihcam s'doowtA(
: )b(
1 )1( a1m = g1m T = yF 2 )2( a2m = T - g2m = yF
gmmamm
21
21
+-
)3( =
gmm
T2mm12
12
+ )4( =
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01
43 ( ) . . gk 6.2 = 2m ,gk 5.9 = 1m
1m )c( )b( 1m (. a )x
:
x: )1( a1m = qnis g1m T = xF
y : )2( o = qsoc g1m N = yF
y 2m )3( a2m = T g2m = yF
:
gmmammnis
12
22
+-q
)4( =
+q) (+
g1nis =mm
Tmm12
)5( 12
9.08m/s2.2m/s2 ) ( ) () (
9.5gk2.6gk= 2 a2.6gk9.5gknis43
+-
=
. : . 2 1
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/ / 9.8m/s1nis4313N ) () ( ) () (
9.5gk2.6gk+= 2 T9.5gk2.6gk
+ =
2m)N 62 = 2m( . 2m
. gk 5.5 -1 N8.3
( . ( ( . s/m 2.5
. b a gk 01 -2 s/m 52 a m 05 b
. b
.s01
s/m 701 4.1 -3
m 41-01 1 72-01 76.1 .
.gk
-4 N29 ,N09 . gk 52
. h/mk 35 -5 ( )mc 56
.
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( ) gk 93
gk 2.5 =m . 1F ,2F m -6 .N 3.4 = 2F N 7.3 = 1F
(. )
gk 4.8 gk 04 -7 .N 2.5 m 51
- -
( ) - .
. gk 57 -8
2s/m 27.3 = g - . -
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528.1 h/mk 0261 -9
. 4-01 8.2 -01
: 33 . - . -
N 00031 h/mk 08 -11 m 12
. - . . - h/mk 04 -
. 2s/m 2.9 gk 52.0 -21
= P gk 1.5 -31 52 = q N21
-41 N 054 .
. 83 gk 69 . N521
.
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. gk 0061 -51 s/m 21
.m 24 . a M -61
a
. -71 .
gk 3.2 = 1m ,gk 2.1 = 2m ,N2.3 = F - .
1m 2m - .a N1.2
gk 07.3 = 1m -81 82 = q
. gk 68.1 = 2m -
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