zinematika ariketak3_emaitzak
TRANSCRIPT
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8/9/2019 zinematika ariketak3_emaitzak
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EMAITZAK
1.
HZUA / HZU / geldirik dago / HZUA / HZU
2. t = 49 s
S = 100 m
a.
hkmm
km
h
s
s
m
smvvttvSS
/34,71000
1.
1
3600.04,2
/04,249
10049.0100).( 00
=
==+=+=
b.
sttttvSS
mkmS
2,49004,2
1000.04,201000).(
10001
00 ==+=+=
==
3.
mSttattvSS
smaattavv
st
smkm
m
s
h
h
kmv
v
1,15311.53,2.2
100).(.
2
1).(
/53,211
78,2711.078,27).(
11
/78,271
1000.
3600
1.100
0
12
0000
2
00
0
=++=++=
==+=+=
=
==
=
4.
2
0
0
0
2
0
000
0
/8 3,208,9
07 8,2 7
0
/7 8,2 7/1 0 0
8,9
/1 0
3
03 0). (
0
/3 0
3
smtt
vva
v
smhk mv
st
sm
tt
vvattavv
v
smv
st
=
=
=
=
==
=
=
=
=+=
=
=
=
5.
v1 = 10 km/h = 2,78 m/s S01 = 1000 m
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v2 = 12 km/h = 3,33 m/s S02 = 0
tSttvSS
tSttvSS
.3,30).(
.78,21000).(
202022
101011
+=+=
+=+=
Arrapatzen duenean S1 = S2
mSS
stt
tttt
54,605418,1818.33,3
18,181855,0
1000.55,01000
.78,2.33,31000.33,30.78,21000
21 ===
===
=+=+
6.
a. HZU, HZUA, HZU, HZUA
b.
2
4
2
3
2
0
0
2
2
1
/23040
020
/0
/81520
400
/0
sma
sma
smtt
vva
sma
=
=
=
=
=
=
=
c.
d atalean kalkulatutako datuekin:
S = 600 + 100 + 0 + 100 = 800 m
d.
mS
ttattvSS
HZUA
mSttvSS
geldiHZU
mS
ttattvSS
HZUA
mSttvSS
HZU
600)3040.(2.2
10700
).(.2
1).(
7000700).(
)(
700)1520.(8.21)1520.(40600
).(.2
1).(
600)015.(400).(
2
4
2
044404404044
30333033
22
2
022202202022
10111011
=+=
++=
=+=+=
=+=
++=
=+=+=
7. h = 300m
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a. b atalean kalkulatutako denborarekin:
smvttgvv /63,7682,7.8,90).( 00 ===
Abiadura negatiboa beherantza doalako.
b.
stt
ttgttvSS
82,78,9
2.300.8,9.
2
103000
).(.2
1).(
2
2
0000
==+=
+=
c. HZU
sttttvSS 88,0340
300.3400300).( 00 ==+=+=
8. v0 = 30 m/s
t = 1 s
a.
mSttgttvSS
smvttgvv
1,251.8,9.2
11.300).(.
2
1).(
/2,201.8,930).(
22
0000
00
=+=+=
===
b.
mSttgttvSS
sttttgvv
92,4506,3.8,9.2
106,3.300).(.
2
1).(
06,38,9
30.8,9300).(
22
0000
00
=+=+=
=
===
c.
smvttgvv
ttttgttvSS
/3006,3.8,90).(
06,38,9
2.92,45.8,9.
2
10092,45).(.
2
1).(
00
22
0000
===
==+=+=