Leg 1 What is the final velocity and position of a freight train that accelerates at a rate of 0.0700 m/s² for 4.00 minutes, starting with an initial velocity of 2.00 m/s? (a) • Using the notation Ax=x-x for displacement, x for final position, xo for initial position, v for final velocity, vo for initial velocity, a for acceleration, and t for time, determine what quantities are known and what quantities are unknown. • Enter the values of some known quantities below. • Make sure you account for the signs of the vectors using the coordinate system in Part 1. Enter to 3 significant figures. Enter with correct signs. m/s Vo = m/s² a = t= (b) Is the motion of the freight train one with constant velocity or constant acceleration? This will help you choose the correct equations of motion. (c) Choose an appropriate equation of motion from List 1 to calculate the final velocity of the train after 4.00 minutes. List 1 Ax= vt Δx = (vo + v) 2 S t v=V₁ + at ✓²=²+2a4x

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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### Physics Problem: Motion and Deceleration

**Equation of Motion:**
\[ \Delta x = v_0 t + \frac{1}{2} a t^2 \]

**Task:**
- **(c)** Calculate the final velocity after 4.00 minutes. Enter your answer to 3 significant figures.
  - **Final velocity after 4.00 minutes:**  
    \[ v = \_\_\_\_\_ \, \text{m/s} \]

- **(d)** Choose the appropriate equation of motion from List 1 to calculate how far the train will travel after 4.00 minutes. Enter your answer to 3 significant figures.
  - **Displacement of the train in 4.00 minutes:**  
    \[ \Delta x = \_\_\_\_\_ \, \text{m} \]

---

**Leg 2:**
- If the train can slow down at a rate of \(0.550 \, \text{m/s}^2 \), determine the time it will take to come to a stop from the velocity calculated in part (c).

- **(e)** Create a list of knowns before calculations. Deduce the initial velocity (\(v_0\)) from part (c). Enter values with correct signs and to 3 significant figures.

  - Initial velocity (\(v_0\)):
    \[ v_0 = \_\_\_\_\_ \, \text{m/s} \]

  - Final velocity (\(v\)):
    \[ v = \_\_\_\_\_ \, \text{m/s} \]

  - Acceleration (\(a\)):
    \[ a = \_\_\_\_\_ \, \text{m/s}^2 \]

- **(f)** Decide if the motion of the freight train is with constant velocity or constant acceleration. This will guide the choice of the correct equation of motion.

  - Select from the options:
    \[ \text{[Dropdown Menu]} \]

Choose the appropriate equation of motion from List 1 to determine how long it will take the train to stop.

---

*Note: Enter all answers with the correct units.*
Transcribed Image Text:--- ### Physics Problem: Motion and Deceleration **Equation of Motion:** \[ \Delta x = v_0 t + \frac{1}{2} a t^2 \] **Task:** - **(c)** Calculate the final velocity after 4.00 minutes. Enter your answer to 3 significant figures. - **Final velocity after 4.00 minutes:** \[ v = \_\_\_\_\_ \, \text{m/s} \] - **(d)** Choose the appropriate equation of motion from List 1 to calculate how far the train will travel after 4.00 minutes. Enter your answer to 3 significant figures. - **Displacement of the train in 4.00 minutes:** \[ \Delta x = \_\_\_\_\_ \, \text{m} \] --- **Leg 2:** - If the train can slow down at a rate of \(0.550 \, \text{m/s}^2 \), determine the time it will take to come to a stop from the velocity calculated in part (c). - **(e)** Create a list of knowns before calculations. Deduce the initial velocity (\(v_0\)) from part (c). Enter values with correct signs and to 3 significant figures. - Initial velocity (\(v_0\)): \[ v_0 = \_\_\_\_\_ \, \text{m/s} \] - Final velocity (\(v\)): \[ v = \_\_\_\_\_ \, \text{m/s} \] - Acceleration (\(a\)): \[ a = \_\_\_\_\_ \, \text{m/s}^2 \] - **(f)** Decide if the motion of the freight train is with constant velocity or constant acceleration. This will guide the choice of the correct equation of motion. - Select from the options: \[ \text{[Dropdown Menu]} \] Choose the appropriate equation of motion from List 1 to determine how long it will take the train to stop. --- *Note: Enter all answers with the correct units.*
**Freight trains can produce only relatively small accelerations and decelerations.**

### Leg 1

**Problem:** What is the final velocity and position of a freight train that accelerates at a rate of 0.0700 m/s² for 4.00 minutes, starting with an initial velocity of 2.00 m/s?

#### (a)

- **Using the notation**:
  - Δx = x - x₀ for displacement
  - x for final position
  - x₀ for initial position
  - v for final velocity
  - v₀ for initial velocity
  - a for acceleration
  - t for time

Determine what quantities are known and what quantities are unknown.

- Enter the values of some known quantities below.
- Make sure you account for the signs of the vectors using the coordinate system in Part 1.

**Inputs: Enter to 3 significant figures. Enter with correct signs.**

- v₀ = [Input field] m/s
- a = [Input field] m/s²
- t = [Input field] s

#### (b)

**Question:** Is the motion of the freight train one with constant velocity or constant acceleration? This will help you choose the correct equations of motion.

- [Dropdown selection for user input]

#### (c)

**Task:** Choose an appropriate equation of motion from List 1 to calculate the final velocity of the train after 4.00 minutes.

**List 1**

- Δx = vt
- Δx = (v₀ + v) / 2 * t
- v = v₀ + at
- v² = v₀² + 2aΔx

Users are expected to select an equation from List 1 to solve for the final velocity at the end of the specified time using known values.
Transcribed Image Text:**Freight trains can produce only relatively small accelerations and decelerations.** ### Leg 1 **Problem:** What is the final velocity and position of a freight train that accelerates at a rate of 0.0700 m/s² for 4.00 minutes, starting with an initial velocity of 2.00 m/s? #### (a) - **Using the notation**: - Δx = x - x₀ for displacement - x for final position - x₀ for initial position - v for final velocity - v₀ for initial velocity - a for acceleration - t for time Determine what quantities are known and what quantities are unknown. - Enter the values of some known quantities below. - Make sure you account for the signs of the vectors using the coordinate system in Part 1. **Inputs: Enter to 3 significant figures. Enter with correct signs.** - v₀ = [Input field] m/s - a = [Input field] m/s² - t = [Input field] s #### (b) **Question:** Is the motion of the freight train one with constant velocity or constant acceleration? This will help you choose the correct equations of motion. - [Dropdown selection for user input] #### (c) **Task:** Choose an appropriate equation of motion from List 1 to calculate the final velocity of the train after 4.00 minutes. **List 1** - Δx = vt - Δx = (v₀ + v) / 2 * t - v = v₀ + at - v² = v₀² + 2aΔx Users are expected to select an equation from List 1 to solve for the final velocity at the end of the specified time using known values.
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