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Accelerating projectile force needed

  1. Dec 24, 2014 #1
    1. The problem statement, all variables and given/known data
    I need to accelerate a 0.2 gram projectile to 300 m/s within 80cm. How much force (N) do I need?

    2. Relevant equations
    E = F * S

    3. The attempt at a solution
     
  2. jcsd
  3. Dec 24, 2014 #2
    There is no attempt at a solution.
     
  4. Dec 24, 2014 #3

    haruspex

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    You know a mass a velocity and a distance, and you wish to determine a force. You have quoted an equation involving energy, force and distance. What other equations involving some of mass, energy, velocity, force and distance do you know?
     
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