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A factory worker pushes a 30.0 kg crate a distance of 4.5 m along a level floor at constant velocity by pushing downward at an angle of 30∘ below the horizontal. The coefficient of kinetic friction between the crate and floor is 0.25.
You do not have to show your work
![### Part A
**Question:**
What magnitude of force must the worker apply to move the crate at constant velocity?
**Instruction:**
Express your answer in newtons.
**Input Field:**
\( F = \, \) [N]
**Actions:**
- Submit
- Request Answer
---
### Part B
**Question:**
How much work is done on the crate by this force when the crate is pushed a distance of 4.5 m?
**Instruction:**
Express your answer in joules.
**Input Field:**
\( W = \, \) [J]
**Actions:**
- Submit
- Request Answer
---
### Part C
**Question:**
How much work is done on the crate by friction during this displacement?
**Instruction:**
Express your answer in joules.
**Input Field:**
\( W_f = \, \) [J]
**Actions:**
- Submit
- Request Answer
---](https://content.bartleby.com/qna-images/question/f4586ed3-251d-413f-881b-72e0763cbb19/847b865b-0aca-43a4-91d2-64fa75300725/8bd50ox_processed.png)
Transcribed Image Text:### Part A
**Question:**
What magnitude of force must the worker apply to move the crate at constant velocity?
**Instruction:**
Express your answer in newtons.
**Input Field:**
\( F = \, \) [N]
**Actions:**
- Submit
- Request Answer
---
### Part B
**Question:**
How much work is done on the crate by this force when the crate is pushed a distance of 4.5 m?
**Instruction:**
Express your answer in joules.
**Input Field:**
\( W = \, \) [J]
**Actions:**
- Submit
- Request Answer
---
### Part C
**Question:**
How much work is done on the crate by friction during this displacement?
**Instruction:**
Express your answer in joules.
**Input Field:**
\( W_f = \, \) [J]
**Actions:**
- Submit
- Request Answer
---
![**Part D**
**How much work is done by the normal force?**
Express your answer in joules.
\[ W_{nf} = \_\_\_\_ \, \text{J} \]
---
**Part E**
**How much work is done by gravity?**
Express your answer in joules.
\[ W_g = \_\_\_\_ \, \text{J} \]
---
**Part F**
**What is the total work done on the crate?**
Express your answer in joules.
\[ W_{net} = \_\_\_\_ \, \text{J} \]
---
For each part, there's a text box available for inputting your answer in joules, the standard unit of work or energy in the International System of Units (SI). After entering the answer, you can click "Submit" to check the response or "Request Answer" for more assistance.](https://content.bartleby.com/qna-images/question/f4586ed3-251d-413f-881b-72e0763cbb19/847b865b-0aca-43a4-91d2-64fa75300725/8nah9i_processed.png)
Transcribed Image Text:**Part D**
**How much work is done by the normal force?**
Express your answer in joules.
\[ W_{nf} = \_\_\_\_ \, \text{J} \]
---
**Part E**
**How much work is done by gravity?**
Express your answer in joules.
\[ W_g = \_\_\_\_ \, \text{J} \]
---
**Part F**
**What is the total work done on the crate?**
Express your answer in joules.
\[ W_{net} = \_\_\_\_ \, \text{J} \]
---
For each part, there's a text box available for inputting your answer in joules, the standard unit of work or energy in the International System of Units (SI). After entering the answer, you can click "Submit" to check the response or "Request Answer" for more assistance.
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