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3. A 8000-N trunk is pushed along a level road by two men who apply a total forward force of 1000 N. Neglecting friction, what is the acceleration of the trunk? (Gravitational acceleration g = 10 m/s2)
(A) 0.0125 m/s2
(B) 0.125 m/s2
(C) 0.8 m/s2
(D) 1.25 m/s2
(E) 8 m/s2


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10
 【站僕】摩檸Morning:有沒有達人來解釋一下?
倒數 1天 ,已有 1 則答案
面試倒楣鬼-22幸運上後西 大二上 (2022/07/31):

M =8000/g = 800(kg)
A = F/M = 1000/800 = 1.25 (D)

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