A factory worker pushes a 31.2 kg crate a distance of 4.9 m along a level floor at constant velocity by pushing downward at an angle of 28° below the horizontal. The coefficient of kinetic friction between the crate and floor is 0.25. vv nj Submit Request Answer Part E How much work is done by gravity? Wg = Submit Part F Wtot = 2 C Templates Symbols undo do reset keyboard shortcuts help ΑΣΦΑ / C What is the total work done on the crate? Submit Request Answer 3 C I Templates Symbols undo do reset keyboard shortcuts help ΑΣΦΑ / C Provide Feedback Request Answer J J J

A factory worker pushes a 31.2 kg crate a distance of 4.9 m along a level floor at constant velocity by pushing downward at an angle of 28° below the horizontal. The coefficient of kinetic friction between the crate and floor is 0.25. vv nj Submit Request Answer Part E How much work is done by gravity? Wg = Submit Part F Wtot = 2 C Templates Symbols undo do reset keyboard shortcuts help ΑΣΦΑ / C What is the total work done on the crate? Submit Request Answer 3 C I Templates Symbols undo do reset keyboard shortcuts help ΑΣΦΑ / C Provide Feedback Request Answer J J J

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Description: **Problem Statement:**A factory worker pushes a 31.2 kg crate a distance of 4.9 m along a level floor at constant velocity by pushing downward at an angle of 28° below the horizontal. The coefficient of kinetic friction between the crate and floor i

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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Topic Video

Question

**Problem Statement:**

A factory worker pushes a 31.2 kg crate a distance of 4.9 m along a level floor at constant velocity by pushing downward at an angle of 28° below the horizontal. The coefficient of kinetic friction between the crate and floor is 0.25.

**Tasks:**

**Part E:**

- **Question:** How much work is done by gravity?
- **Input Field:** \( W_g = \) [blank field] J
- **Button:** Submit

**Part F:**

- **Question:** What is the total work done on the crate?
- **Input Field:** \( W_{\text{tot}} = \) [blank field] J
- **Button:** Submit

**Additional Features:**

- Templates and symbols are available for input.
- Options for undo, redo, reset, and keyboard shortcuts are provided for user assistance.
- Submit buttons are available for finalizing responses.
- Includes the option to request answers for guidance.

**Exercise 6.4**

**Problem Statement:**
A factory worker pushes a 31.2 kg crate a distance of 4.9 m along a level floor at constant velocity by pushing downward at an angle of 28° below the horizontal. The coefficient of kinetic friction between the crate and floor is 0.25.

**Part C:**

*Question:*
How much work is done on the crate by friction during this displacement?

*Instructions:*
Express your answer using two significant figures.

*Response Box:*
- Enter your answer in joules (J).

*Attempted Answer:*
416.30 J

*Feedback:*
Incorrect; Try Again; 3 attempts remaining

**Part D:**

*Question:*
How much work is done by the normal force?

*Response Box:*
- Enter your answer in joules (J).

*Buttons:*
- Submit
- Request Answer

*Note:*
The diagram showing the physical setup and vectors is not included, but understanding vector decomposition and the frictional force calculation is essential for solving these problems.

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