Recent content by tzar1990

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    Torque on a suspended plank

    Thank you! That's what I told my student, but she seemed doubtful that an official question would have a misprint like that. Nice to hear that I'm not just missing something obvious.
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    Can we use conservation of energy law to find final velocity

    I would actually imagine this is just a kinematics question - if you're only dealing with when it lands on the ground, it's easy to calculate the velocity up. And since you know initial velocity in the relevant direction, acceleration due to gravity, and final displacement (0), it should be...
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    Torque on a suspended plank

    Homework Statement The object is balance. Calculate T1 and T2. (yes, this plus the diagram is really the entirety of the question) Homework Equations Στ = 0 τ = F⋅r F = mg The Attempt at a Solution First, we treat the left side as a fixed point and solve for the vertical component of...
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    Physics Tutor (and slightly out of my depth)

    Hello, folks! I'm a biology major in Alberta, and I recently started tutoring at a small company in Edmonton. THings are going decently so far - I did pretty well in physics up to second year, and this is only first year stuff - but I have been having a bit of trouble on a few questions, so i...
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