A 60 kg stagehand working at the Fisher Center stands on a 40 kg platform suspended above the stage by means of a rope and pulley of negligible mass. While one end of the rope is attached the platform, the stagehand holds the other. 4. A) List all the forces on the platform and all the forces on the stagehand. Of these, which forces (if any) are pairs that follow from Newton's 3rd Law? B) If the stagehand is not moving, what is the tension of the rope? C) If the stagehand is not moving, what is the magnitude of the normal force from the platform on her?

A 60 kg stagehand working at the Fisher Center stands on a 40 kg platform suspended above the stage by means of a rope and pulley of negligible mass. While one end of the rope is attached the platform, the stagehand holds the other. 4. A) List all the forces on the platform and all the forces on the stagehand. Of these, which forces (if any) are pairs that follow from Newton's 3rd Law? B) If the stagehand is not moving, what is the tension of the rope? C) If the stagehand is not moving, what is the magnitude of the normal force from the platform on her?

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter5: Newton's Law Of Motion

Section: Chapter Questions

Problem 23P: While sliding a couch across a floor, Andrea and Jennifer exert forces FA and FJ on the couch....

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