newnewnewnew (id: 6b4b60b66)

本题目来源于试卷: newnewnewnew，类别为 IB物理学

[填空题]
An 18.0$-\mathrm{kg}$ box is released on a 37.0$^{\circ}$ incline and accelerates down the incline at 0.270 $\mathrm{~m} / \mathrm{s}^{2}$ . Find the friction force impeding its motion.    How large is the coefficient of kinetic friction?   

参考答案:
空格1: 101±2%  空格2: 0.719±2% 


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