••46 An elevator cab is pulled upward by a cable. The cab and its single occupant have a combined mass of 2000 kg. When that occu- pant drops a coin, its acceleration relative to the cab is 8.00 m/s² downward. What is the tension in the cable?

••46 An elevator cab is pulled upward by a cable. The cab and its single occupant have a combined mass of 2000 kg. When that occu- pant drops a coin, its acceleration relative to the cab is 8.00 m/s² downward. What is the tension in the cable?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter8: Conservation Of Energy

Section: Chapter Questions

Problem 84PQ

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Concept explainers

Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”

Question

•46 An elevator cab is pulled upward by a cable. The cab and its
single occupant have a combined mass of 2000 kg. When that occu-
pant drops a coin, its acceleration relative to the cab is 8.00 m/s²
downward. What is the tension in the cable?

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