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Clearnote
Q&A
Senior High
Chinese
第八題看不懂
Chinese
Senior High
over 1 yearago
Will
第八題看不懂
一物體以20公尺/秒的速度進入一均匀粗糙的水平面沿直線滑40公尺後停止,若此物體改 以10公尺/秒的速度進入同一平面上滑行(滑行時加速度仍與先前相同),則物體滑行的距離為 何? (A) (B)10 (C) 15 (D)20 (E) 40 公尺。 d 8. 物體由靜止向前作等加速運動,若物體移動距離d需費時t秒,則物體移動 ㄩㄥ 距離時的速度量 2d C 4d 值為(A) (B) 24 (C)√2d (D) (E) d (D) t t t (E)庭 Ezmu m/s 20 V= t x = vo fut
第8題 看不懂
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