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2011
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8
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28
鏃ユ秷鎭細
8
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26
鏃ワ紝
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20
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20
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20
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1
A
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v
t
2
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2
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5 m/s
2
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6 s
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(
)
A
锛?/p>
30 m
B
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40 m
C
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50 m
D
锛?/p>
60 m
3
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v
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v
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4
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2
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1 m/s
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a
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b
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2.5 m
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)(
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2
A.
5s
B
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(
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1) s
C
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3 s
D
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2.5 s
5
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1
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180 m
锛涚
6
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360 m
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(
)
A
锛?/p>
0.01 m/s
2
B
锛?/p>
0.05 m/s
2
C
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36 m/s
2
D
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180 m/s
2
6
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3
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v
1
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v
2
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v
3
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t
1
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t
2
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t
3
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(
)
鍥?/p>
K2
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3
A
锛?/p>
v
1
鈭?/p>
v
2
鈭?/p>
v
3
锛?/p>
3
鈭?/p>
2
鈭?/p>
1
B
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v
1
鈭?/p>
v
2
鈭?/p>
v
3
锛?/p>
5
鈭?/p>
3
鈭?/p>
1