Four students visited me this past week.
The first wanted to talk about her exam - things that she thought she didn't get, and how to understand questions.
The two that came on Tuesday asked homework questions, and their main question was about the block against a wall with a force pushing at an angle to the surface of the vertical wall - coming in, they didn't understand how the concepts of normal force, friction, and applied force interplay.
My Friday student came for help on the tension extra credit lab. What stumped her was the idea that tension along a string is equal all throughout (assuming masslessness, of course).
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