瀹夊笀澶ч檮涓?/p>
2017-2018
瀛﹀勾楂樹笁
12
鏈堟祴鑰?/p>
鐗╃悊璇曢
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I
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(
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42
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)
涓�銆侀�夋嫨棰?/p>
(
鏈ぇ棰樺叡
12
涓皬棰橈紝姣忎釜灏忛閮芥湁
4
涓�夐」锛?/p>
1-6
涓哄崟閫夛紝姣忓皬棰?/p>
3
鍒嗭紱
7-12
涓哄閫夛紝姣忓皬棰?/p>
4
鍒嗭紝
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4
鍒嗭紝閫夊閫変笉鍏ㄥ緱
2
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1.
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K
鐨勬瀬闄愰鐜囦负
谓
0
锛岀幇鐢ㄩ鐜囦负
谓
(
谓
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谓
0
)
鐨勫厜鐓у皠鍦ㄩ槾鏋?/p>
涓婏紝鑻ュ湪
A
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K
涔嬮棿鍔犱竴鏁板�间负
U
鐨勫弽鍚戠數鍘嬫椂锛屽厜鐢垫祦鎭板ソ涓洪浂锛屽垯涓嬪垪鍒ゆ柇閿欒鐨勬槸
(
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A
锛庨槾鏋佹潗鏂欑殑閫稿嚭鍔熺瓑浜?/p>
h
谓
0
B
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eU
C
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h
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h
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D
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a
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b
涓ゅ皬鐞冧互澶у皬涓?/p>
20
5 m/s
鐨勫垵閫熷害鍒嗗埆浠?/p>
A
銆?/p>
B
涓ょ偣鐩稿樊
1 s
鍏堝悗姘村钩鐩稿悜鎶涘嚭锛?/p>
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A
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t
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a
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b
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g
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10 m/s
2
锛屽垯鎶?
鍑虹偣
A
銆?/p>
B
闂寸殑姘村钩璺濈鏄?/p>
(
)
A
锛?/p>
80
5m
B
锛?/p>
100 m
C
锛?/p>
200 m
D
锛?/p>
180
5 m
3.
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m
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鐨勮窛绂讳负
h
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锛屾鍚庣粡鍘嗘椂闂?/p>
t
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(
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A.
m
2
gh
t
锛?/p>
mg
B
锛?/p>
m
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gh
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mg
C.
m
gh
t
锛?/p>
mg
D
锛?
m
gh
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mg
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涓�娈靛渾鏌卞舰鈥滄棆杞埍鈥?/p>
锛屽鍥炬墍绀恒�傚綋鏃嬭浆鑸辩粫鍏惰酱绾垮寑閫熸棆杞椂锛屽瓧鑸憳绔欏湪鐗硅埍鍐呯綉鏌卞舰渚у涓婏紝鍙互鍙楀埌涓?/p>
浠栫珯鍦ㄥ湴鐞冭〃闈㈡椂鐩稿悓澶у皬鐨勬敮鎸佸姏銆備负杈惧埌涓婅堪鐩殑锛屼笅宸炶娉曟纭殑鏄?/p>
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