Edit in JSFiddle

var game = new Phaser.Game(480,320,Phaser.CANVAS,"",{preload: preload, create: create, update: update});

function preload(){
  game.load.image("cohete","data:image/png;base64,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");
  game.load.physics("fisica","data:application/json;base64,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");
}

function create(){
  game.physics.startSystem(Phaser.Physics.P2JS);
  game.physics.p2.gravity.y = 1000;
  
  var cohete = game.add.sprite(100,100,"cohete");
  game.physics.p2.enable(cohete);
  cohete.body.clearShapes();
  cohete.body.loadPolygon("fisica","cohete");
  cohete.body.velocity.x = 1000;
}

function update(){

}