Which of the vectors shown above best represents the initial velocity in the "y" direction for an object launched at an angle?

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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Which of the vectors shown above best represents the initial velocity in the "y" direction for an object launched at an angle?
### Projectile Motion Vectors

#### Vectors and Motion

Consider the vector diagrams listed below:

- **a.** ↖️
- **b.** ↘️
- **c.** ⬇️
- **d.** ⬆️

#### Question

Which of the vectors shown above best represents the initial velocity in the "y" direction for an object launched at an angle?

### Detailed Explanation

When an object is launched at an angle, its initial velocity can be broken down into two components:
- The horizontal component (x-direction).
- The vertical component (y-direction).

In the given question, we are focusing specifically on the initial velocity in the "y" direction. Out of the given vectors:

- **a.** (↖️) points upwards and left.  
  *This represents a motion with components in both negative x-direction and positive y-direction.*
- **b.** (↘️) points downwards and right.
  *This represents a motion with components in both positive x-direction and negative y-direction.*
- **c.** (⬇️) points directly downwards.
  *This represents a motion in the negative y-direction only.*
- **d.** (⬆️) points directly upwards.
  *This represents a motion in the positive y-direction only.*

For an object launched at an angle, the **initial velocity in the "y" direction** would be represented by the vector that points **directly upwards**, which is:

#### Answer: **d.** ⬆️
Transcribed Image Text:### Projectile Motion Vectors #### Vectors and Motion Consider the vector diagrams listed below: - **a.** ↖️ - **b.** ↘️ - **c.** ⬇️ - **d.** ⬆️ #### Question Which of the vectors shown above best represents the initial velocity in the "y" direction for an object launched at an angle? ### Detailed Explanation When an object is launched at an angle, its initial velocity can be broken down into two components: - The horizontal component (x-direction). - The vertical component (y-direction). In the given question, we are focusing specifically on the initial velocity in the "y" direction. Out of the given vectors: - **a.** (↖️) points upwards and left. *This represents a motion with components in both negative x-direction and positive y-direction.* - **b.** (↘️) points downwards and right. *This represents a motion with components in both positive x-direction and negative y-direction.* - **c.** (⬇️) points directly downwards. *This represents a motion in the negative y-direction only.* - **d.** (⬆️) points directly upwards. *This represents a motion in the positive y-direction only.* For an object launched at an angle, the **initial velocity in the "y" direction** would be represented by the vector that points **directly upwards**, which is: #### Answer: **d.** ⬆️
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