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

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William Haynes on Equilibrium of a particle: four forces 4 days, 5 hours ago

Saved a checkpoint:

Problem is throwing "undefined is not an object (evaluating 'original_result.states.mark')" when answer is submitted.  Resubmitting it works.  

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William Haynes on Equilibrium of a particle: four forces 1 week, 4 days ago

Saved a checkpoint:

No bug, student misinterpreted the question leading to his problem

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William Haynes on Equilibrium of a particle: four forces 1 week, 4 days ago

Saved a checkpoint:

Bug in marking algorithm reported

William Haynes published Friction: Range of values 1 2 weeks, 6 days ago

William Haynes published Friction: Range of values 2 2 weeks, 6 days ago

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William Haynes on Friction: Range of values 2 2 weeks, 6 days ago

Gave some feedback: Ready to use

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William Haynes on Friction: Range of values 1 2 weeks, 6 days ago

Gave some feedback: Ready to use

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William Haynes on Friction: Determine direction of $F_f$ 2 weeks, 6 days ago

Gave some feedback: Ready to use

William Haynes published Friction: block on block 2 2 weeks, 6 days ago

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William Haynes on Friction: block on block 2 2 weeks, 6 days ago

Gave some feedback: Ready to use

William Haynes published Friction: block on block 1 2 weeks, 6 days ago

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William Haynes on Friction: block on block 1 2 weeks, 6 days ago

Gave some feedback: Ready to use

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William Haynes on Chapter 9 Exercises 2 weeks, 6 days ago

Saved a checkpoint:

Added 5 Friction problems from Vladimir Vingoradov

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William Haynes on Friction: Range of values 2 2 weeks, 6 days ago

Saved a checkpoint:

Replaced diagram with Geogebra diagram,  Changed answers to use Quantities extension.

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William Haynes on Friction: block on block 1 2 weeks, 6 days ago

Saved a checkpoint:

Redrew Diagram, changed to use Quantities Extension

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William Haynes on Machine: Pliers 3 weeks, 1 day ago

Gave some feedback: Ready to use

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William Haynes on Machine: Pliers 3 weeks, 1 day ago

Gave some feedback: Ready to use

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William Haynes on Friction: Range of values 1 3 weeks, 2 days ago

Saved a checkpoint:

Replaced Diagram, changed numeric answers to quantities.

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William Haynes on Friction: Determine direction of $F_f$ 3 weeks, 2 days ago

Saved a checkpoint:

Add quantities, re-draw diagram.