http://www.slate.com/articles/health_and_science/science/2015/06/immovable_object_meets_an_unstoppable_force_which_will_win_we_have_the_answer.html

The principle of telativity, Newton’s second law of motion, and perspective are all concepts to consider when an immovable object meets an unstoppable force. And, when talking about immovable objects, are we actually talking about un-acceleratable objects? In the video above, the Minute Physics team once again defines, explains and amazes.