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Vector Projectile Question

  1. Apr 15, 2012 #1
    1. The problem statement, all variables and given/known data

    Need help solving this problem

    An emergency relief plane is dropping a care package from a plane to a group of medical personnel working for a relief agency in an African village. The package is designed to land in a small lake, inflate an attached raft upon impact, and finally resurface with the raft side down. The plane will be moving horizontally with a ground speed of 59.1 m/s. The package will be dropped a horizontal distance of 521 m from the intended target location. At what altitude above the pond must the plane be flying in order to successfully accomplish this feat?

    yf=0m yi=? Viy=? t=8.82s


    2. Relevant equations
    yf=yi+Viyt+1/2at^2

    3. The attempt at a solution Not sure where to go from here
     
  2. jcsd
  3. Apr 15, 2012 #2
    Nm I solved it assuming Viy=0m/s
     
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