Problem 2. [25 pts) Side AB of the square ABCD is extended to P, A - B - P, so that BP 2 AB. With M the midpoint of DC,...
Problem 2. [15 ptsl ABCD is a nonsimple quadrilateral. P Q, R, and S are midpoints on AB, BC,CD and AD respectively. Show that PQRS ia a parallelogram A1 Problem 2. [15 ptsl ABCD is a nonsimple quadrilateral. P Q, R, and S are midpoints on AB, BC,CD and AD respectively. Show that PQRS ia a parallelogram A1
Additional problem 1 Let AABC be a triangle, let be the bisector of the angle ZCAB Let P be the intersection of and BC. Let R be the point on the line AB such that AR-AC, and let X-APnRC. Let Q denote the intersection point between the line through B and X and AC. (a) Show that the triangle AARC is isosceles, and deduce that RX-XC. (b) Apply Menelaus's theorem to the triangle AARC with the line through B, X,...
(b) Colum CD is of square cross section of side 42 mm, length L- 5.25 m, and made of steel (E= 190 GPa). For a factor of safety of 2, the maximum permissible load Q is approximately (10 Pts) (A) 3.0 kN (B) 6.0 kN (C) 9.4 kN (D) 10.1 kN 24 Note: The critical load of a column is given by CIT2 E Pinned-pinned Fixed-free 0.25 Fixed-fixed Fixed-pinned 2.046 (b) Colum CD is of square cross section of side...
A 3 m rigid bar AB is supported with a vertical translational spring at A and a pin at B The bar is subjected to a linearly varying distributed load with maximum intensity g Calculate the vertical deformation of the spring if the spring constant is 700 kN/m. (ans: 21.43 mm) 2. A steel cable with a nominal diameter of 25 mm is used in a construction yard to lift a bridge section weighing 38 kN. The cable has an...