 Ch 4. Moments/Equivalent Systems Multimedia Engineering Statics Moment2-D Scalar Moment3-D Scalar Moment3-D Vector Couples and Equiv. System Distributed Loads, Intro
 Chapter 1. Basics 2. Vectors 3. Forces 4. Moments 5. Rigid Bodies 6. Structures 7. Centroids/Inertia 8. Internal Loads 9. Friction 10. Work & Energy Appendix Basic Math Units Sections Search eBooks Dynamics Statics Mechanics Fluids Thermodynamics Math Author(s): Kurt Gramoll ©Kurt Gramoll STATICS - CASE STUDY SOLUTION Solution Diagram The solution simply requires the total moment about the point A. The moment generated about point A is the man's weight times the perpendicular distance from point A With the ship at an angle of α, the perpendicular distance from point A to the line of action of the force, d, is      d = x cosα ft The moment is then just the distance D times the force, W, giving      MA = W d            = Wx cosα   ft-lb

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