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How do you know when k in Hooke's law is positive or negativ
Homework Statement A 7.2-kg mass is hanging from the ceiling of an elevator by a spring of spring constant 150N/m whose unstretched length is 80 cm. What is the overall length of the spring when the elevator: (a) starts moving upward with acceleration 0.95m/s2 ; (b) moves upward at a steady...- Derek Marusarz
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- Hooke's law Law Positive Spring constant
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- Forum: Introductory Physics Homework Help