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William Haynes on Equilibrium of a particle: four forces 6 days, 22 hours 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 6 days, 23 hours ago

Saved a checkpoint:

Bug in marking algorithm reported

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

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

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

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

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William Haynes on Friction: Determine direction of $F_f$ 2 weeks, 1 day ago

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

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William Haynes on Friction: block on block 2 2 weeks, 1 day ago

Gave some feedback: Ready to use