24 in. 100 lb 60° A 100-lb vertical force is applied to the end of a lever which is attached to a shaft at O. Determine: a) moment about O, 1200 lb-in CW b) horizontal force at A which creates the same moment, 57.7 lb c) smallest force at A which produces the same moment, 50 lb, perpendicular to OA d) location for a 240-lb vertical force to produce the same moment, OB = 10 in e) whether any of the forces from b, c, and d is equivalent to the original force. No