# How to get the magnitude and direction?

1. Feb 10, 2015

### Ika_10

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

2. Feb 10, 2015

### SteamKing

Staff Emeritus
The magnitude of what?

3. Feb 10, 2015

### Ika_10

The magnitude of its velocity just before striking

4. Feb 10, 2015

### SteamKing

Staff Emeritus
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?

5. Feb 10, 2015

### Ika_10

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 dont have any idea of what i will going to use even he already taught the formulas.

6. Feb 10, 2015

### Ika_10

Maybe that the formula for the magnitude will be derived from the main formulas but i dont know where's the magnitude in that formulas

7. Feb 10, 2015

### SteamKing

Staff Emeritus
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. ;)

8. Feb 10, 2015

### azizlwl

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.

9. Feb 10, 2015

### Staff: Mentor

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