問題詳情
1. A transmission cable AB exerts a 2500 N force on the pole in the direction of the tangent to the cable at A . Determine the required tension T in the guy wire AC if the resultant of the two forces t A is to be vertical. Find the magnitude R of the resultant. (25%)
參考答案
答案：B
難度：簡單0.830189
統計：A(9),B(88),C(2),D(3),E(0)