Engineering Statics Homework Problems. Problems have dynamic Geogebra diagrams and use the quantities extension.

Many are included in Engineering Statics: Open and Interactive, a free, online textbook. 

Project activity

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William Haynes on Truss: zero force members 3 days, 18 hours ago

Saved a checkpoint:

Switched to all-or-nothing scoring.  No feedback.

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William Haynes commented on Truss: zero force members 3 days, 19 hours ago

Need to work on the marking algorithm to give full 20 points when all are correct.  Currently, rounding errors on some situations lead to scores below 20.  Also would like to provide feeedback.  "some zfm not selected" and "some load bearing members chosen"

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William Haynes on Truss: zero force members 4 days, 10 hours ago

Saved a checkpoint:

Try to make the members clickable

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William Haynes commented on Truss: zero force members 4 days, 10 hours ago

Found and fixed several errors

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William Haynes on Truss: zero force members 4 days, 20 hours ago

Saved a checkpoint:

Bug reported. Seems to be indicating the wrong number of zero force members

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William Haynes on Centroids by integration 3 weeks ago

Saved a checkpoint:

set restriction to only accept single variable names for xbar ybar, qx and qy

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William Haynes on Centroids by integration 3 weeks ago

Saved a checkpoint:

looking for bug.  

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William Haynes on Equilibrium of a particle: Rope and pulley 2 months ago

Saved a checkpoint:

corrected bug in solution algorithm 

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William Haynes on Equilibrium of a particle: four forces 2 months ago

Saved a checkpoint:

Added marking algorithm so that alternate angle descriptions are marked correctly

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William Haynes on Method of Joints: Symmetric Truss 2 months, 1 week ago

Saved a checkpoint:

replaced geogebra_file() with geogebra_applet()

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William Haynes on V-M 5a: Arbitrary parabolic loading 2 months, 1 week ago

Saved a checkpoint:

replaced geogebra_file() with geogebra_applet()

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William Haynes on V-M 5: Symmetric parabolic loading 2 months, 1 week ago

Saved a checkpoint:

replaced geogebra_file() with geogebra_applet()

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William Haynes on Reactions for beam with uniformly varying load 2 months, 1 week ago

Saved a checkpoint:

replaced geogebra_file() with geogebra_applet()

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William Haynes on Vector addition by summing scalar components - easy 2 months, 1 week ago

Saved a checkpoint:

Replaced geogebra_file() with geogebra_applet() to work around bug 

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William Haynes on Vector addition by summing scalar components - easy 2 months, 3 weeks ago

Saved a checkpoint:

Bug Reported, applet not loading

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William Haynes on Method of Joints: Symmetric Truss 7 months ago

Gave some feedback: Ready to use

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William Haynes on Method of Joints: Symmetric Truss 7 months ago

Gave some feedback: Needs to be tested

William Haynes created Method of Joints: Symmetric Truss 7 months, 1 week ago

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William Haynes on V-M 1: Concentrated forces 9 months ago

Saved a checkpoint:

fixed see comment on range