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You are standing on a bathroom scale inside an elevator. Your weight is 144 lb, but the reading of the scale is 112 lb. a. What is the acceleration of the elevator? If the acceleration is in upward direction, enter a positive value and if it is in downward direction, enter a negative value. answer in m/s^2 b. see attached

You are standing on a bathroom scale inside an elevator. Your weight is 144 lb, but the reading of the scale is 112 lb. a. What is the acceleration of the elevator? If the acceleration is in upward direction, enter a positive value and if it is in downward direction, enter a negative value. answer in m/s^2 b. see attached

Physics for Scientists and Engineers: Foundations and Connections
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter7: Gravity
Section: Chapter Questions
Problem 62PQ
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You are standing on a bathroom scale inside an elevator. Your weight is 144 lb, but the reading of the scale is 112 lb.

a. What is the acceleration of the elevator? If the acceleration is in upward direction, enter a positive value and if it is in downward direction, enter a negative value. answer in m/s^2

b. see attached

 

**Understanding Elevator Acceleration** Question: In which of the following cases is the acceleration of the elevator downward? **Check All That Apply** - The elevator is going up and slowing down. - The elevator is going down and speeding up. - The elevator is going up and speeding up. - The elevator is going down and slowing down. **Explanation:** To understand the scenarios where the acceleration of the elevator is downward, consider the following principles of motion: 1. **Going Up and Slowing Down:** When an elevator moves upward and slows down, it is due to a downward acceleration opposing its upward motion. 2. **Going Down and Speeding Up:** When an elevator is moving downward and speeds up, it accelerates in the same direction as it is moving, which is downward. 3. **Going Up and Speeding Up:** When an elevator moves upward and speeds up, its acceleration is upward. 4. **Going Down and Slowing Down:** When an elevator moves downward and slows down, its acceleration is upward, opposing its downward motion. In summary, the cases where the acceleration is downward are: - **The elevator is going up and slowing down.** - **The elevator is going down and speeding up.** Understanding these principles helps in grasping the concepts of motion and acceleration in different scenarios.
Transcribed Image Text:**Understanding Elevator Acceleration** Question: In which of the following cases is the acceleration of the elevator downward? **Check All That Apply** - The elevator is going up and slowing down. - The elevator is going down and speeding up. - The elevator is going up and speeding up. - The elevator is going down and slowing down. **Explanation:** To understand the scenarios where the acceleration of the elevator is downward, consider the following principles of motion: 1. **Going Up and Slowing Down:** When an elevator moves upward and slows down, it is due to a downward acceleration opposing its upward motion. 2. **Going Down and Speeding Up:** When an elevator is moving downward and speeds up, it accelerates in the same direction as it is moving, which is downward. 3. **Going Up and Speeding Up:** When an elevator moves upward and speeds up, its acceleration is upward. 4. **Going Down and Slowing Down:** When an elevator moves downward and slows down, its acceleration is upward, opposing its downward motion. In summary, the cases where the acceleration is downward are: - **The elevator is going up and slowing down.** - **The elevator is going down and speeding up.** Understanding these principles helps in grasping the concepts of motion and acceleration in different scenarios.
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