### Student Whiteboard Problem**Educational Focus: Understanding Forces in an Accelerating Frame**---**Problem Statement:**An elevator is moving upward at 5 m/s while slowing down at 2 m/s². Inside the elevator, a yellow box (5.0 kg) is stacked on top of a gray box (10.0 kg).#### Questions:1. If a scale is placed between the boxes, what will the scale read?2. If a scale is placed beneath the bottom box, what will the scale read?---**Diagram Description:**A diagram is provided that shows a simple representation of an elevator. Inside the elevator, a yellow box is stacked on top of a gray box. **Detailed Explanation of the Diagram:**- The elevator is shown as a vertical rectangle with a cable attached to its top, indicating it is suspended.- Inside the elevator, a small yellow box (representing the 5.0 kg box) is stacked directly on top of a larger gray box (representing the 10.0 kg box).---**Considerations for Solving the Problem:**- Since the elevator is moving upward but slowing down, it is experiencing a downward acceleration of 2 m/s².- The effective gravitational force acting on the boxes will be modified by the elevator's acceleration.**Step-by-Step Solution:**1. **For the scale between the boxes:** - Calculate the effective gravitational acceleration: \( g_{eff} = g - a = 9.8 \, m/s² - 2.0 \, m/s² = 7.8 \, m/s² \). - Determine the force on the scale due to the top box: \( F_{scale} = m_{yellow} \times g_{eff} = 5.0 \, kg \times 7.8 \, m/s² = 39 \, N \).2. **For the scale beneath the bottom box:** - The scale must support the entire weight of both boxes. - Total mass: \( m_{total} = m_{yellow} + m_{gray} = 5.0 \, kg + 10.0 \, kg = 15.0 \, kg \). - Calculate the force exerted on the scale: \( F_{total} = m_{total} \times g_{eff} = 15.

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An elevator is moving upward at 5 m/s while slowing down at 2 m/s/s. Inside the elevator a yellow box (5.0 kg) is stacked on top of a gray box (10.0 kg). 1. If a scale is placed between the boxes, what will the scale read? 2. If a scale is placed beneath the bottom box, what will the scale read? 37

An elevator is moving upward at 5 m/s while slowing down at 2 m/s/s. Inside the elevator a yellow box (5.0 kg) is stacked on top of a gray box (10.0 kg). 1. If a scale is placed between the boxes, what will the scale read? 2. If a scale is placed beneath the bottom box, what will the scale read? 37

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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