gc physics textbook chapter 4 problems (id: a18b5554d)

本题目来源于试卷: gc physics textbook chapter 4 problems，类别为 IB物理学

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A box weighing 77.0 N 1jul/di0j9ar g z:-bw rests on a tgobuns/g3r-gz jgl*5 ;3go/n1 ozg-table. A rope tied to the box runs vertically upward over a pulley and a weigt3r5 gbo n n3jzg1zgl-gg oso u-*;g//ht is hung from the other end (Fig. 4-40). Determine the force that the table exerts on the box if the weight hanging on the other side of the pulley weighs
(a) 30.0 N ,   
(b) 60.0 N ,   
(c) 90.0 N .   

参考答案:
空格1: 47±2%  空格2: 17±2%  空格3: 0±2% 


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