Statics notes day 1

# Statics notes day 1 - Topics Introduction to Statics Forces...

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Topics Introduction to Statics Forces Vector Addition Cartesian Coordinates Unit Vectors Sections in Book 1/1-1/5 2/1 -2/3

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STATICS Statics is concerned with the conditions under which structures are at rest (in equilibrium). The basic quantities we will deal with in Statics are Scalar Quantities lengths , angles (geometry) Vector Quantities forces, moments, position (geometry) Matrix Quantities Mass moments of inertia, area moments
Units of the Quantities considered in Statics Length English: feet (ft), inches (in.) Metric: meter (m) , centimeter (cm), millimeter (mm) 1 in. = 25.4 mm 1 m = 39.37 in. = 3.281 ft Angle radians, degrees 1 radian = 360/2 π degrees = 57.3 degrees Force U.S: Pound (lb) Metric: Newton (N) 1 lb = 4.448 N , 1 N = 0.2248 lb Moment U.S.: foot-pounds (ft-lb) or inch-pounds( in-lb) Metric: Newton-meters (N-m)

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In the SI system, the fundamental unit of mass is the kilogram. The weight (W) of a body is a force and in the SI system it is measured in Newtons. Force =
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Statics notes day 1 - Topics Introduction to Statics Forces...

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