gc physics textbook chapter 6 problems (id: f82575781)

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

[填空题]
$\text{What is the minimum work needed to push a 950-kg car 810 m up along a 9.0$^{\circ} $ incline? }$$(a)\text{ Ignore friction. }$    J
$(b)\\\text{Assume the effective coefficient of friction retarding the car is }0.25.$    J

参考答案:
空格1: 1200000±2%  空格2: 3000000±2% 


本题详细解析:

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