绔犳湯鑷祴鍗?/p>
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绗竴绔?/p>
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闄愭椂锛?/p>
45
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涓�銆佸崟椤归�夋嫨棰?/p>
1.
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姝ｇ‘缁撹鏈?/p>
(
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A.
鍊捐涓�瀹氭椂锛屽皬鐞冨湪鏂滈潰涓婄殑浣嶇Щ涓庢椂闂寸殑浜屾鏂规垚姝ｆ瘮
B.
鍊捐涓�瀹氭椂锛屽皬鐞冨湪鏂滈潰涓婄殑閫熷害涓庢椂闂寸殑浜屾鏂规垚姝ｆ瘮
C.
鏂滈潰闀垮害涓�瀹氭椂锛屽皬鐞冧粠椤剁婊氬埌搴曠鏃剁殑閫熷害涓庡�捐鏃犲叧
D.
鏂滈潰闀垮害涓�瀹氭椂锛屽皬鐞冧粠椤剁婊氬埌搴曠鎵�闇�鐨勬椂闂翠笌鍊捐鏃犲叧
绛旀
A
2.
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(
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A.
鏍规嵁閫熷害瀹氫箟寮?/p>
v
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x
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t
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t
闈炲父灏忔椂锛?/p>
螖
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t
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B.
鍦ㄤ笉闇�瑕佽�冭檻鐗╀綋鐨勫ぇ灏忓拰褰㈢姸鏃讹紝鐢ㄨ川鐐规潵浠ｆ浛瀹為檯鐗╀綋閲囩敤浜嗙瓑鏁堟浛浠ｇ殑鏂规硶
C.
鍔犻�熷害鐨勫畾涔夊紡涓?/p>
a
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v
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D.
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浣嶇Щ鐩稿姞锛岃繖閲岄噰鐢ㄤ簡寰厓娉?/p>
绛旀
B
3.(2018路
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50 Hz
鐨勯鐜囩洃瑙嗗墠鏂圭殑浜ら�氱姸鍐?/p>
.
褰撹溅
閫熷皬浜庣瓑浜?/p>
10
m/s
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鑷姩鍒硅溅鈥濓紝浣挎苯杞﹂伩鍏嶄笌闅滅鐗╃浉鎾?/p>
.
鍦ㄤ笂杩版潯浠朵笅锛岃嫢璇ヨ溅鍦ㄤ笉鍚岃矾鍐典笅鐨勨�滃叏鍔涜嚜鍔ㄥ埞杞︹�濈殑鍔犻�熷害澶у皬鍙?/p>
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(
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A.
5
3
s
B.
25
3
s
C.2.5 s
D.12.5 s
绛旀
C
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10 m/s
涓斿姞閫熷害鍙栨渶灏忓�兼椂锛?/p>
鈥?/p>
鍏ㄥ姏鑷姩鍒硅溅
鈥?/p>
鏃堕棿鏈�闀匡紝
鐢遍�熷害涓庢椂闂村叧绯?/p>
v
锛?/p>
v
0
锛?/p>
at
鍙煡锛?/p>
t
锛?
v
锛?/p>
v
0
a
锛?
0
锛?/p>
10
锛?/p>
4
s
锛?/p>
2.5 s
锛?/p>
C
椤规纭?/p>
.
4.
濡傚浘
1
鎵�绀猴紝
a
銆?/p>
b
銆?/p>
c
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c
鏄竴鏉?/p>
x
锛?/p>
0.4
t
2
鐨勬姏鐗╃嚎
.
鏈夊叧杩欎笁涓墿
浣撳湪
0
锝?/p>
5 s
鍐呯殑杩愬姩锛屼笅鍒楄娉曟纭殑鏄?/p>
(
)
鍥?/p>
1
A.
a
鐗╀綋鍋氬寑鍔犻�熺洿绾胯繍鍔?/p>
