(Solved): 2.6 When force \( P \) is applied to the rigid arm \( A B C \), point \( B \) displaces vertically d ...
2.6 When force \( P \) is applied to the rigid arm \( A B C \), point \( B \) displaces vertically downward through a distance of \( \mathbf{0 . 2 ~ m m} \). Determine the normal strain in wire \( \boldsymbol{C} \boldsymbol{D} \).