Sensei Tip: Before you use an energy equation, ask this one question. ⚡
Is energy conserved in this problem?
If yes, use conservation of energy. Simple.
If no, something is adding or removing energy. Find it first. That's your work term.
Most students jump straight to equations without answering this question. That's why they get stuck halfway through.
One question. Asked first. Every time. That's the habit.
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Raul Barrea
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Sensei Tip: Before you use an energy equation, ask this one question. ⚡
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