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Re Some help with a using and applying project

Discussion in 'Trainee and student teachers' started by ELLIS1980, Dec 30, 2011.

  1. Hello All, I am currently studying on a SKE course at Brighton and I am struggling with a project.

    Does anyone know a formula for distance a projectile could be fired from a catapult? I have mass, force in Newtons, acceleration and velocity worked out but struggling with predicting the distance various projectiles could be fired?

    Kind Regards

    dan
     
  2. DM

    DM New commenter

    You need the angle of projection above the horizontal too.
    Ignoring air resistance, the range on horizontal ground is (2 x initial velocity x sin (angle of projection above horizontal) / acceleration due to gravity (9.8 m/s^2)
    You would be better advised to post in the Mathematics Forum next time.
     
  3. Thanks DM, thats much appreciated.

    Kind Regards

    Dan
     
  4. Is it possible to calculate initial velocity without having time and range variables?
     

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