Acceleration in 2 Dimensions-Vectors and Projectiles

Click For Summary

Homework Help Overview

The problem involves an airplane's motion in two dimensions, specifically focusing on its velocity and acceleration components in the x and y directions. The original poster seeks to determine the airplane's velocity after a specified time, given its initial velocity and acceleration values.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants discuss the method of calculating changes in velocity components and question the relevance of the initial velocity provided. There is an emphasis on needing to find both x and y components of the final velocity.

Discussion Status

The discussion is active, with participants clarifying the need for separate answers for the x and y components of velocity. Some guidance has been offered regarding the change in velocity components, but no consensus on a complete solution has been reached.

Contextual Notes

There is a mention of the textbook's relevant equation for average acceleration, and the original poster expresses uncertainty about their calculations, suggesting a need for further clarification on the initial conditions and how they affect the outcome.

Snape1830
Messages
65
Reaction score
0
1. An airplane is flying with a velocity of (150, 0) m/s. It is accelerated at 8.92 m/s2 in the x direction, and accelerated in negative y direction at 1.21 m/s2. What is the airplane's velocity at t = 3.6 s?2. My textbook says this is a relevant equation: average acceleration = change in velocity/change in time.
ax=change in velocityx/change in time
ay=change in velocityy/change in time.

Where vx and vy are the components of velocity.
3. So, I plugged the knows (time and acceleration) into the equations and got 32.1 m/s and 4.4 m/s. But I knew it was wrong because why would they give (150, 0) m/s?

How do I solve this problem?
 
Physics news on Phys.org
You are finding the change in the velocity components. Use Δv = vf - vi.
 
Thanks Doc Al. The only issue is that I need two answers. (x,y) m/s.
 
Snape1830 said:
The only issue is that I need two answers. (x,y) m/s.
And you have two components. What's the initial velocity x-component? y-component?
 

Similar threads

Is My Calculation of Centripetal Acceleration and Tangential Velocity Correct?
  • · Replies 12 ·
Replies
12
Views
2K
Question about Projectile Motion: Throwing a Flower Pot from a Balcony
  • · Replies 18 ·
Replies
18
Views
2K
Projectile Motion velocity vector Problem
  • · Replies 2 ·
Replies
2
Views
2K
Solve Angular Velocity & Acceleration - Dimensional Analysis
  • · Replies 3 ·
Replies
3
Views
2K
2-D Kinematic Velocity and Acceleration Practice Problem
  • · Replies 2 ·
Replies
2
Views
2K
Is the y-component of projectile motion acceleration equal to gravity?
  • · Replies 8 ·
Replies
8
Views
3K
Uniform Circular Motion and Projectile Motion Help
  • · Replies 14 ·
Replies
14
Views
3K
Find velocity with projectile and recoil accelerations
  • · Replies 4 ·
Replies
4
Views
2K
Solve Physics Q: Acceleration & Velocity of Object
  • · Replies 3 ·
Replies
3
Views
2K
Projectile motion of a cannon ball versus time
  • · Replies 15 ·
Replies
15
Views
2K