A model train powered by an electric motor accelerates from rest to 0.520 m/s in 23.0 ms. The total mass of the train is 660 g. What is the average power (in W) delivered to the train by the motor during its acceleration? 3.056 How is the work done related to the change in kinetic energy? What is the initial kinetic energy? How is kinetic energy related to speed? How is power related to work and time? Be careful of units. W Need Help? Read It

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
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**Problem Statement:**

A model train powered by an electric motor accelerates from rest to \(0.520 \, \text{m/s}\) in \(23.0 \, \text{ms}\). The total mass of the train is \(660 \, \text{g}\). What is the average power (in W) delivered to the train by the motor during its acceleration?

**Input Area:**

- User input: `3.056` (incorrect, indicated by a red 'X')

**Guiding Question:**

How is the work done related to the change in kinetic energy? What is the initial kinetic energy? How is kinetic energy related to speed? How is power related to work and time? Be careful of units.

**Help Button:**

- "Need Help?" with a "Read It" button for further assistance.
Transcribed Image Text:**Problem Statement:** A model train powered by an electric motor accelerates from rest to \(0.520 \, \text{m/s}\) in \(23.0 \, \text{ms}\). The total mass of the train is \(660 \, \text{g}\). What is the average power (in W) delivered to the train by the motor during its acceleration? **Input Area:** - User input: `3.056` (incorrect, indicated by a red 'X') **Guiding Question:** How is the work done related to the change in kinetic energy? What is the initial kinetic energy? How is kinetic energy related to speed? How is power related to work and time? Be careful of units. **Help Button:** - "Need Help?" with a "Read It" button for further assistance.
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