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鍧氭寔涓嶆噲鐨勭偣婊寸Н绱?/p>
鏂硅兘閾稿氨婊存按绌跨煶
1
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1
绔犻潤鐢靛満绗?/p>
08
鑺?/p>
甯︾數绮掑瓙鍦ㄧ數鍦轰腑鐨勮繍鍔?/p>
[
鐭ヨ兘鍑嗗
]
1
锛?/p>
鍒╃敤鐢靛満鏉ユ敼鍙樻垨鎺у埗甯︾數绮掑瓙鐨勮繍鍔紝
鏈�绠�鍗曟儏鍐垫湁涓ょ锛?/p>
鍒╃敤鐢靛満浣垮甫鐢电矑瀛?/p>
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锛涘埄鐢ㄧ數
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________
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2
锛庣ず娉㈠櫒锛氱ず娉㈠櫒鐨勬牳蹇冮儴浠舵槸
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鍜岃崸鍏夊睆缁勬垚锛?/p>
绠″唴鎶芥垚鐪熺┖锛?/p>
[
鍚屾瀵煎
]
1
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(1)
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(
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(
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(2)
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2
2
1
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mv
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(
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2
0
2
2
1
2
1
qU
mv
mv
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飥?/p>
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2
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v
0
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90
0
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(
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锛?/p>
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(
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)
锛?/p>
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v
0
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1
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1
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8
鈥?/p>
1
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U
锛岀浉璺濅负
d
锛屾澘闀夸负
L
锛?/p>
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q
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v
0
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y
鍜屽亸杞
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?
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F
锛?/p>
Eq
锛?/p>
Uq/d
鐢辩墰椤跨浜屽畾寰嬶紝鍔犻�熷害
a = F/m = Uq/md
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L =
v
0
t
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t
= L/
v
0
鐢辫繍鍔ㄥ鍏紡
2
2
1
at
s
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U
d
mv
qL
L
md
Uq
y
2
0
2
2
0
2
)
v
(
2
1
飥?/p>
飪?/p>
飥?/p>
甯︾數绂诲瓙鍦ㄧ寮�鐢靛満鏃讹紝绔栫洿鏂瑰悜鐨勫垎閫熷害锛?/p>
v
鈯?/p>
d
mv
qUL
at
0
飥?
飥?/p>