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Emma runs for 28 seconds and finishes at 250 meters. What is her velocity? \( 28 \cdot ?=\square \) Clay runs for 32 seconds at -8.1 meters per second. What is his finish point? \( 32 \cdot \square \)

Ask by Wang Schofield. in the United States
Feb 03,2025

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Answer

Emma's velocity is approximately 8.93 meters per second. Clay's finish point is 259.2 meters in the negative direction from his starting point.

Solution

Sure, let's solve both problems step by step. --- ### **1. Emma's Velocity** **Given:** - **Distance (Δx):** 250 meters - **Time (t):** 28 seconds **Formula for Velocity (v):** \[ v = \frac{\Delta x}{t} \] **Calculation:** \[ v = \frac{250\ \text{m}}{28\ \text{s}} \approx 8.93\ \text{m/s} \] **Final Equation:** \[ 28\ \text{s} \times 8.93\ \frac{\text{m}}{\text{s}} = 250\ \text{m} \] **Answer:** Emma's velocity is approximately **8.93 meters per second**. --- ### **2. Clay's Finish Point** **Given:** - **Velocity (v):** -8.1 meters per second (the negative sign indicates direction) - **Time (t):** 32 seconds **Formula for Displacement (Δx):** \[ \Delta x = v \times t \] **Calculation:** \[ \Delta x = (-8.1\ \frac{\text{m}}{\text{s}}) \times 32\ \text{s} = -259.2\ \text{m} \] **Final Equation:** \[ 32\ \text{s} \times (-8.1\ \frac{\text{m}}{\text{s}}) = -259.2\ \text{m} \] **Answer:** Clay's finish point is **259.2 meters** in the negative direction from his starting point. --- **Summary:** - **Emma's Velocity:** ≈ 8.93 m/s - **Clay's Finish Point:** –259.2 meters

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To find Emma's velocity, you can use the formula for velocity, which is distance divided by time. So, her velocity would be calculated as \( \frac{250 \, \text{meters}}{28 \, \text{seconds}} \), resulting in approximately 8.93 meters per second. Now, you can fill in the blank with this calculated value for her velocity! For Clay, he's running at a velocity of -8.1 meters per second for 32 seconds. To find his finish point, you multiply his velocity by time: \( 32 \cdot (-8.1) \). This gives you -259.2 meters, which indicates that Clay is moving in the negative direction and ends up 259.2 meters from the starting point in that negative direction!

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