passing json data to a ember router

I am trying to pass data to the route through an json file.

app/templates/dashbord.js

app/routes/dashboard.js

import Ember from 'ember';

export default Ember.Route.extend({

  model() {
    return $.getJSON( "app1.json");
 },
});

public/app1.json

[
  ['Task', 'Hours per Day'],
  ['Work', 11],
  ['Eat', 2],
  ['Commute', 2],
  ['Watch TV', 2],
  ['Sleep', 7],
];

when i am trying to do like this no output is displaying on browser why? thanks in advance.