178 results authored by William Haynes - search across all users.
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demonstrates bug on geogebra diagram
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Given a loaded truss, identify any zero force members by inspection.
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End of chapter exercises for Engineering Statics: Open and Interactive
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Find the mechanical advantage of a pair of 'vice-grip' pliers.
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Homework set. Identify zero force members and utilize special loading conditions to simplify trusses.
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Identify errors in student-drawn free body diagrams of a frame.
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Calculate reactions and shear and bending moment at a point for an overhanging beam with a constant or uniformly varying distributed load.
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Determine the forces in the pistons of a hydraulicly operated excavator.
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End of chapter exercises for Engineering Statics: Open and Interactive
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Determine expressions for internal shear and bending moment as a function of $x$ for a beam with two vertical loads.
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Student calculates $\bar{y}$ for a triangle. Must use similar triangles get element $dA$.
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Find the area, first moment of area, and coordinates of a general spandrel. The area may be above or below the function.
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Locate the centroid of a rectangle, triangle, and semi-circle on a coordinate grid.
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Find the centroid of a shape made up of a rectangle and two triangles.
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Find the centroid of a shape made from a rectangle, triangle, and circle.
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Equilibrium of a rigid body. Find tension to raise a pole.
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Homework set. Find 2-D moments or balance moments using Verignon's theorem: $ M = \pm F_x d_y \pm F_y d_x$
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Determine the reactions supporting a cantilever beam carrying concentrated forces and moments.
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Homework set. Problems involving two interacting particles.
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Homework set. Variations on problems involving single particle equilibrium.
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Homework set. Vector addition in two dimensions by summing scalar components.
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Homework set. Determine the moment of a force using the definition of the moment, $M = F d_\perp$.
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Replace three tangential forces with an equivalent force-couple system acting at the center of a circle.
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Find the tension required to hold a pole at a specified angle.
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Homework set. Find statically equivalent systems of forces.
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Homework set. Rigid body equilibrium solved using the three-force body principle.
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Homework set. Find reactions for various 2-D rigid bodies in equilibrium.
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Homework set. Find reactions for various 2-D rigid bodies in equilibrium.
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Homework set. Identify student errors when drawing free body diagrams.
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Homework set. Calculate resultant moment of one or more couples.
