Big problem - urgent help needed

Guys I started my car up tonight and the bottom of the car was vibrating, and when I accelerate it sounds like a motorbike and the car is really vibrating and it feels like I have no power. I checked the exhaust and the tail pipes have dropped loads out of nowhere, and the big pipe under the car, to me seems to have lowered. I am uploading vids and pics as I write this, but would this sound like the problem of an exhaust drop it could this actually be the engine?

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