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?

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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