8. Alchild of mass m at rest starts sliding from a height h water-slide without friction. She is launched from a height of 0.500 m into the pool. Use the law of energy conservation to find the speed of the child at points 2, 3, and 4. 3.00 m along a curved |3 PI h=D3m P2 P3 T0.5m

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)...
icon
Related questions
Question
100%
**Problem 8: Conservation of Energy on a Curved Water-slide**

*A child of mass \( m \) at rest starts sliding from a height \( h = 3.00 \, \text{m} \) along a curved water-slide without friction. She is launched from a height of \( 0.500 \, \text{m} \) into the pool. Use the law of energy conservation to find the speed of the child at points 2, 3, and 4.*

**Diagram Explanation:**

The diagram shows a vertically curved water-slide. The key points in the diagram are:

- **Point P1**: The starting point at the top of the slide, where the height \( h_1 = 3 \, \text{m} \).

- **Point P2**: The point where the child is sliding down, located immediately after the start of the slide.

- **Point P3**: An intermediate point on the slide located at a height of \( 0.5 \, \text{m} \) above the ground.

- **Point P4**: The launch point, where the child is at water level, height \( h = 0 \, \text{m} \).

**Objective:**

To find the speed \( v \) of the child at points P2, P3, and P4 using the law of energy conservation.

**Steps using the Law of Energy Conservation:**

1. **Initial Energy at Point P1:**
   - Potential Energy at P1: \( PE_1 = mgh_1 = mg \times 3 \, \text{m} \)
   - Kinetic Energy at P1: \( KE_1 = 0 \) (since the child starts at rest)

2. **Total Mechanical Energy at Point P1:**
   - \( E_1 = KE_1 + PE_1 = 0 + mg \times 3 \, \text{m} = 3mg \)

3. **Mechanical Energy at Point P2:**
   - At P2, without friction, mechanical energy remains conserved.
   - Total Energy \( E_2 = E_1 = 3mg \)
   - If the potential energy at some height \( h_2 \) is considered: \( PE_2 = mg \times h_2 \)
   - Then, \( 3mg =
Transcribed Image Text:**Problem 8: Conservation of Energy on a Curved Water-slide** *A child of mass \( m \) at rest starts sliding from a height \( h = 3.00 \, \text{m} \) along a curved water-slide without friction. She is launched from a height of \( 0.500 \, \text{m} \) into the pool. Use the law of energy conservation to find the speed of the child at points 2, 3, and 4.* **Diagram Explanation:** The diagram shows a vertically curved water-slide. The key points in the diagram are: - **Point P1**: The starting point at the top of the slide, where the height \( h_1 = 3 \, \text{m} \). - **Point P2**: The point where the child is sliding down, located immediately after the start of the slide. - **Point P3**: An intermediate point on the slide located at a height of \( 0.5 \, \text{m} \) above the ground. - **Point P4**: The launch point, where the child is at water level, height \( h = 0 \, \text{m} \). **Objective:** To find the speed \( v \) of the child at points P2, P3, and P4 using the law of energy conservation. **Steps using the Law of Energy Conservation:** 1. **Initial Energy at Point P1:** - Potential Energy at P1: \( PE_1 = mgh_1 = mg \times 3 \, \text{m} \) - Kinetic Energy at P1: \( KE_1 = 0 \) (since the child starts at rest) 2. **Total Mechanical Energy at Point P1:** - \( E_1 = KE_1 + PE_1 = 0 + mg \times 3 \, \text{m} = 3mg \) 3. **Mechanical Energy at Point P2:** - At P2, without friction, mechanical energy remains conserved. - Total Energy \( E_2 = E_1 = 3mg \) - If the potential energy at some height \( h_2 \) is considered: \( PE_2 = mg \times h_2 \) - Then, \( 3mg =
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps with 4 images

Blurred answer
Knowledge Booster
Conservation of energy
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
College Physics
College Physics
Physics
ISBN:
9781305952300
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning
University Physics (14th Edition)
University Physics (14th Edition)
Physics
ISBN:
9780133969290
Author:
Hugh D. Young, Roger A. Freedman
Publisher:
PEARSON
Introduction To Quantum Mechanics
Introduction To Quantum Mechanics
Physics
ISBN:
9781107189638
Author:
Griffiths, David J., Schroeter, Darrell F.
Publisher:
Cambridge University Press
Physics for Scientists and Engineers
Physics for Scientists and Engineers
Physics
ISBN:
9781337553278
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:
9780321820464
Author:
Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:
Addison-Wesley
College Physics: A Strategic Approach (4th Editio…
College Physics: A Strategic Approach (4th Editio…
Physics
ISBN:
9780134609034
Author:
Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:
PEARSON