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How to get the magnitude and direction?

  1. Feb 10, 2015 #1
    A bomb is released from an airplane flying horizontally at an elevation 1600 ft with a velocity of 294 ft/s.

    I dont know how to get the magnitude. Will you please help me?
     
  2. jcsd
  3. Feb 10, 2015 #2

    SteamKing

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    The magnitude of what?
     
  4. Feb 10, 2015 #3
    The magnitude of its velocity just before striking
     
  5. Feb 10, 2015 #4

    SteamKing

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    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?
     
  6. Feb 10, 2015 #5
    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.
     
  7. Feb 10, 2015 #6
    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
     
  8. Feb 10, 2015 #7

    SteamKing

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    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. ;)
     
  9. Feb 10, 2015 #8
    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.
     
  10. Feb 10, 2015 #9

    jtbell

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