var app = angular.module('plunker', ['duScroll']);

app.controller('MainCtrl', function($scope, $http, $document) {
  data_url = 'http://beta.json-generator.com/api/json/get/KIS2qzH?delay=2';
  
  $scope.getPosts = function() {
    $http.get(data_url).success(function(data){
      $scope.posts = data;
      var post = angular.element($('body')).find('#pid_18');
      console.log(post);
      $('body').scrollTop(angular.element(post).position().top);
    });
  };
});
<!DOCTYPE html>
<html ng-app="plunker">

  <head>
    <meta charset="utf-8" />
    <title>AngularJS Plunker</title>
    <script>document.write('<base href="' + document.location + '" />');</script>
    <link rel="stylesheet" href="style.css" />
    <script data-require="angular.js@1.3.x" src="https://code.angularjs.org/1.3.15/angular.js" data-semver="1.3.15"></script>
    <script data-require="jquery@1.11.0" data-semver="1.11.0" src="//cdnjs.cloudflare.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/angular-scroll/0.7.0/angular-scroll.min.js"></script>
    <script src="app.js"></script>
  </head>

  <body ng-controller="MainCtrl" ng-init="getPosts()">
    <div id="wrapper">
      <div ng-repeat="post in posts" ng-show="post.isVisible" id="pid_{{post.id}}">
        <div>
          <b>{{post.head}}</b>
        </div>
        <div>{{post.text}}</div>
        <hr />
      </div>
    </div>
  </body>

</html>
/* Put your css in here */