gc physics textbook chapter 6 problems (id: 5447073e7)

本题目来源于试卷: gc physics textbook chapter 6 problems，类别为 IB物理学

[填空题]
A 1300-N crate restszb +wywa7.ll2rpr6 4w on the floor. How much work is re nne)a+m (ekocf9u)arymc:*-rpw,b . g v)l)iquired to move it at constant speed ( ,ali v )r bn*w +pc cmnak:-euy(.gf)m)oe)9ra) 4.0 m along the floor against a friction force of 230 N,    J
(b) 4.0 m vertically?    J

参考答案:
空格1: 920±2%  空格2: 5200±2% 


本题详细解析:

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