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15952
, m, h1
. h2
. :
1. ,
2. ( )
.
3.
6 .
.
4.
50% ,
,h3 .
g = 10 m / s2, m = 100 g,
h1 = 80 cm, h2 = 20 cm. .
1. ....
.
1111 UKUK 00 11 KU smghmmgh /422
111
2
11
( )
....
.
2222 UKUK 22 00 UK smghmghm /222
1222
2
2
2.
.
12 ppp
12 ppp 12 ppp skgmmmp /6,012
, .
3.
t
pF
F
pt s
N
skgmt 1,0
6
/6,0
1p
2
p
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4. 50%
.
: JmghUE 2,02(max)22
JE 1,03
, cmmmg
EhmghUE 101,0333(max)33
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