An engineer is trying to determine the height from which she needs to release a 69kg wrecking ball such that the wrecking ball will be traveling 12.4m/s when it strikes the building at the position shown. Neglect drag. List the energy types at the initial and final time and whether work and loss (due to non-conservative forces) occur as well as the corresponding amounts of energy.
An engineer is trying to determine the height from which she needs to release a 69kg wrecking ball such that the wrecking ball will be traveling 12.4m/s when it strikes the building at the position shown. Neglect drag. List the energy types at the initial and final time and whether work and loss (due to non-conservative forces) occur as well as the corresponding amounts of energy.
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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![### Energy Calculations on Physics Website
An engineer is trying to determine the height from which she needs to release a 50 kg wrecking ball so that the ball will be traveling at 12.4 m/s when it strikes the building at the position shown. Neglect drag.
1. **Energy Types at Initial and Final Time:**
- **Initial:**
- GPE (Gravitational Potential Energy)
- Work: No work
- Loss: No loss
- **Final:**
- GPE & KE (Kinetic Energy)
2. **Question:**
- From what height above the ground does the engineer need to release the ball?
- **Height (\( h \)):** [blank] m
3. **Diagram Description:**
- On the right side of the screen, there is an illustration of a crane labeled "BARNHART" with a wrecking ball attached, poised to strike a building.
- The reference level is shown, and the desired travel path of the ball is indicated with a dotted line heading towards the building.
- The diagram also includes a reference height of 4 meters.
4. **Interactive Elements:**
- Text boxes are provided for entering values related to energy calculations.
- Options to check answers and receive hints are available.
5. **Additional Instructions:**
- Keep numbers in 3 significant figures.
- Utilize a designated calculator if required.
This setup allows students to engage actively with the problem, understanding energy transformations from potential to kinetic energy in a physics context.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7fd53ba4-75f7-4ab8-b660-e3943a595c2f%2F6a9f8d2d-28fb-4a90-a649-4663013c4a5e%2Fld9q4r5_processed.jpeg&w=3840&q=75)
Transcribed Image Text:### Energy Calculations on Physics Website
An engineer is trying to determine the height from which she needs to release a 50 kg wrecking ball so that the ball will be traveling at 12.4 m/s when it strikes the building at the position shown. Neglect drag.
1. **Energy Types at Initial and Final Time:**
- **Initial:**
- GPE (Gravitational Potential Energy)
- Work: No work
- Loss: No loss
- **Final:**
- GPE & KE (Kinetic Energy)
2. **Question:**
- From what height above the ground does the engineer need to release the ball?
- **Height (\( h \)):** [blank] m
3. **Diagram Description:**
- On the right side of the screen, there is an illustration of a crane labeled "BARNHART" with a wrecking ball attached, poised to strike a building.
- The reference level is shown, and the desired travel path of the ball is indicated with a dotted line heading towards the building.
- The diagram also includes a reference height of 4 meters.
4. **Interactive Elements:**
- Text boxes are provided for entering values related to energy calculations.
- Options to check answers and receive hints are available.
5. **Additional Instructions:**
- Keep numbers in 3 significant figures.
- Utilize a designated calculator if required.
This setup allows students to engage actively with the problem, understanding energy transformations from potential to kinetic energy in a physics context.
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