Practice: A 3-kg box of junk is being lowered on a string at a constant speed. What is the tension in the string?
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Concept #1: Equilibrium
Practice: A 3-kg box of junk is being lowered on a string at a constant speed. What is the tension in the string?
Example #1: Multiple Cables on a Loudspeaker
Concept #2: The Normal Force
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