You are in your car towing a fully loaded trailer which has no brakes. What is correct?

When towing a fully loaded trailer without brakes, your vehicle's braking distance increases because the trailer adds extra weight and momentum. This means it takes longer for your car and trailer to come to a complete stop after you apply the brakes. The reaction distance does not change because it depends on your perception and reaction time, not the load. The stopping distance is the sum of reaction distance and braking distance, so with increased braking distance, overall stopping distance also increases. This is why it is important to drive more cautiously and allow more space when towing an unbraked trailer.