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鐎忚
鏀惰棌
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銆€銆€A.1m/s2
銆€銆€B.2m/ s2
銆€銆€C.3m/ s2
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銆€銆€2.涓€鍊�(g猫)鐗╅珨寰為潨姝㈤枊(k膩i)濮嬩綔鍕诲姞閫熺洿绶氶亱(y霉n)鍕�(d貌ng)銆傝ō(sh猫)瀹冨湪绗�1s鍏�(n猫i)鑸囩2S鍏�(n猫i)閫氶亷(gu貌)浣嶇Щ涔嬫瘮鏄痵1:s2锛岃蛋瀹岀1m鏅�(sh铆)鑸囪蛋瀹�2m鏅�(sh铆)鐨勯€熷害涔嬫瘮鏄痸1:v2锛屽墖( )銆�
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銆€銆€D.s1:s2=1:4 v1:v2=1: 鈭�2
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銆€銆€C.2h/g
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銆€銆€6.鎶婄墿楂旀斁鍦ㄥ偩瑙掔偤30搴︾殑鏂滈潰涓婃檪(sh铆)锛屾伆鑳藉嫽閫熶笅婊戯紝閭ｄ箞锛岀墿楂斿拰鏂滈潰涔嬮枔鐨勫嫊(d貌ng)鎽╂摝鏁�(sh霉)鏄�( )銆�
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