Find the moment of the force about C.

Problem Statement Based on Problem 4-61 from the textbook. Determine the magnitude of the moment of the force F about the base line AB of the tripod. a=3.6m b=0.6m F= 40i -25j -80k 2.5 m

Question 2: The ideal spring of constant k-2.6 kN/m is attached to the disk at point A and the end fitting at point B, as shown. The spring is unstretched when OA and Oв are both zero. If the disk is rotated 15° clockwise and the end fitting is rotated 30°counterclockwise, determine the vector expression for the spring force F. Determine distance C so that the moment the spring force makes about the Z axis is equal to 10.82 N.m. - A = 15°1 A 250 mm lllllll 900 mm k = 2.6 kN/m OB = 30° B G 200 mm

show solutions pls thank you