You start with spring that's already been stretched an unknown amount from equilibrium. After stretching it an additional 2.0 cm, you find that the total potential energy associated with the spring is 18 J. You stretch it another 2.0 cm, and now the potential energy rises to 25 J. Part A Find the spring constant. Express your answer with the appropriate units. HÁ k = Value Units Submit Request Answer Part B Find the initial stretch.

You start with spring that's already been stretched an unknown amount from equilibrium. After stretching it an additional 2.0 cm, you find that the total potential energy associated with the spring is 18 J. You stretch it another 2.0 cm, and now the potential energy rises to 25 J. Part A Find the spring constant. Express your answer with the appropriate units. HÁ k = Value Units Submit Request Answer Part B Find the initial stretch.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter5: Energy

Section: Chapter Questions

Problem 63AP: A roller-coaster car of mass 1.50 103 kg is initially at the top of a rise at point . It then moves...

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