問題詳情
1.A uniform thin rigid rod of weight W is supported horizontally by two vertical props at its ends as shown in Fig. 1, At t = 0 one of these supports is kicked out. Find the force on the other support immediately thereafter25%
參考答案
答案：D
難度：適中0.583333
統計：A(1),B(1),C(2),D(7),E(0)