Group members want to work using virtual meeting (google hangouts) but we already have bad group dynamics I am in the first semester of my masters degree in a professional field. I have been assigned to a group with a (fake) political stance. Every week of the semester we are expected to make presentations to the class advocating our groups position in various formats (town hall, internal meeting, speech, etc.). The groups were largely assigned based on age/professional experience (many of the students in this program are working adults, but we are all just out of under-grad).

Our first meeting there was some friction about where and when to meet, one of the members even went to the wrong location then blamed the group when she was 15 minutes late. 

Our first presentation was good but not nearly as professional as the other groups. Now the group wants to stop meeting in person and use Google Hangouts instead. I am very afraid this will detract from the quality of our work and probably our grade, how can I convince my fellow group mates that the extra time spent meeting in person is worth it?
I know this answer comes too late for you. 

But I agree with your assessment. This group project is only going to sink from here. To which, I would build on one existing comment already offered to you. 


  Raise your concerns to them, and then listen to what they have to say
  with an open mind? 


That being said, do not raise your concern to them as a group, raise your concerns and listen to each what has to say with an open mind, but do it individually first. If you bring this concern to them as a group, most members of your group will probably just make the most expedient decision that takes the least amount of commitment on their part, a vote will be quickly called, and then that will be the end of it. 

Also, I agree that the Professor wouldn't want to be bothered with such a problem. Learning to work with unmotivated colleagues is a fact of life. This is your problem to solve, not his.