The force of magnitude F = 141 lb acts along the edge of the triangular plate. Determine the moment of F about point O. The moment is positive if counterclockwise, negative if clockwise. 22" 12" F = 141 lb B Answer: Mo - Ib-in.

An ice figure skater is doing a spin with her hands on bar bells weighing 10 pounds a piece, clutched directly to her center of gravity for the spin. She has started to spin at 120 rpm(12.57 rad/sec) and suddenly extends her hands with the bar bells straight out radially from her body. Her arms are 2.5 feet long, her lo=8 lb-ft²(before extension). How much did she increase her mass moment of inertia by after she extended her arms? Answer in Ibm-ft².

Determine the moment of force F = 150 lb about point O given the rod length (L) is 16 inches. L= 16 in e=128° F= 150 lb

A 5 kip force acts on point A of rod AB as shown. Rod AB is 15 in long. The angle α = 8°. Determine the magnitude in kips and direction in degrees counterclockwise from the +x-axis of the smallest force that will create the same moment about point B as does the 5 kip force. Magnitude - __________(kips) Direction - __________(degrees counterclockwise from the +x axis)