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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Part E: What was the ball's launch angle in degrees?

Transcribed Image Text:### Part C
**Determine the ball's velocity at \( t = 3 \, \text{s} \).**
- **Options:**
- \( 2.00 \hat{i} \, \text{m/s} \)
- \( (2.00 \hat{i} + 4.00 \hat{j}) \, \text{m/s} \)
- \( (2.00 \hat{i} + 2.00 \hat{j}) \, \text{m/s} \)
- \( (2.00 \hat{i} - 2.00 \hat{j}) \, \text{m/s} \)
- **Selected Answer:** \( (2.00 \hat{i} - 2.00 \hat{j}) \, \text{m/s} \)
- **Status:** Correct
### Part D
**What is the value of \( g \) on Planet Exidor?**
- **Express your answer with the appropriate units.**
- **Answer:** \( 2.00 \, \text{m/s}^2 \)
- **Status:** Correct
> *Note:* Use the hints provided for additional guidance.

Transcribed Image Text:**Educational Website Content on Projectile Motion**
**Introduction:**
A physics student on Planet Exidor conducts an experiment by throwing a ball. The ball follows a parabolic trajectory, as seen in the accompanying diagram (Figure 1). The position of the ball is marked at one-second intervals up to \( t = 3 \) seconds. At \( t = 1 \) second, the ball's velocity is \( \vec{v} = (2.0\hat{i} + 2.0\hat{j}) \, \text{m/s} \).
**Diagram Explanation (Figure 1):**
The diagram illustrates the parabolic path of the ball. The coordinate system has the x-axis representing horizontal displacement and the y-axis representing vertical displacement. Key points are labeled at \( 0 \) seconds, \( 1 \) second, \( 2 \) seconds, and \( 3 \) seconds. At \( t = 1 \) second, a vector indicates the velocity \( \vec{v} = (2.0\hat{i} + 2.0\hat{j}) \, \text{m/s} \).
**Problem-Solving:**
**Part A:**
*Determine the ball's velocity at \( t = 0 \) seconds.*
- Options:
- \( 2.0\hat{i} \, \text{m/s} \)
- **(Selected) \( (2.0\hat{i} + 4.0\hat{j}) \, \text{m/s} \)**
- \( (2.0\hat{i} + 2.0\hat{j}) \, \text{m/s} \)
- \( (2.0\hat{i} - 2.0\hat{j}) \, \text{m/s} \)
- **Correct Answer:** \( (2.0\hat{i} + 4.0\hat{j}) \, \text{m/s} \)
**Part B:**
*Determine the ball's velocity at \( t = 2 \) seconds.*
- Options:
- \( 2.0\hat{i} \, \text{m/s} \)
- \( (2.0\hat{i} + 4.0\hat{j}) \, \text{m/s} \)
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