How to get the magnitude and direction?

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Homework Help Overview

The discussion revolves around a physics problem involving projectile motion, specifically the release of a bomb from an airplane and the calculation of its velocity magnitude just before impact.

Discussion Character

  • Exploratory, Conceptual clarification, Problem interpretation

Approaches and Questions Raised

  • Participants express uncertainty about how to calculate the magnitude of the bomb's velocity. There are discussions about the relevant formulas for projectile motion, including vertical and horizontal components. Some participants question where the magnitude fits into these formulas and seek clarification on vector components.

Discussion Status

The discussion is ongoing, with participants exploring different aspects of the problem. Some have provided guidance on the need to calculate vertical and horizontal velocities, while others emphasize the importance of understanding vector concepts. There is no explicit consensus yet on the approach to take.

Contextual Notes

Participants mention recent lessons on projectile motion, indicating that some may still be grappling with the foundational concepts. There is a suggestion that the problem is part of a homework assignment, which may impose certain constraints on the discussion.

Ika_10
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A bomb is released from an airplane flying horizontally at an elevation 1600 ft with a velocity of 294 ft/s.

I don't know how to get the magnitude. Will you please help me?
 
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Ika_10 said:
A bomb is released from an airplane flying horizontally at an elevation 1600 ft with a velocity of 294 ft/s.

I don't know how to get the magnitude. Will you please help me?

The magnitude of what?
 
The magnitude of its velocity just before striking
 
This is a HW type problem. I have moved it to the Introductory Physics HW forum.

You should state the appropriate formulas for solving this problem and show an attempt at a solution.

What do you know about projectile motion?
 
We only tackled this lesson yesterday and i only remembered that this is of course a straight line motion with two kinds of motion: vertical and horizontal. The formulas for vertical are: Vy=gt, h=1/2 g(t)squared and t=Vy/g. And for horizontal are: Vi=Vx and r=Vxt.

My question a while ago is my teacher's first example so i don't have any idea of what i will going to use even he already taught the formulas.
 
Maybe that the formula for the magnitude will be derived from the main formulas but i don't know where's the magnitude in that formulas
 
Ika_10 said:
Maybe that the formula for the magnitude will be derived from the main formulas but i don't know where's the magnitude in that formulas
You've got to calculate the vertical and horizontal velocities of the bomb when it strikes the ground before you can worry about the magnitude of anything. ;)
 
You have to be well versed with vector. I advise you learn as much about vector as to solve problem as this and others involving displacement, velocity, acceleration and others.
 
Ika_10 said:
i don't know where's the magnitude in that formulas

How do you find the magnitude of a vector, in general, when you know the x and y components?
 

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