At 55 mph under ideal conditions, stopping distance would be more than 400 feet.

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Multiple Choice

At 55 mph under ideal conditions, stopping distance would be more than 400 feet.

Explanation:
Stopping distance is the total distance you travel from the moment you notice a need to stop until you come to a complete stop, and it equals the distance your eyes and brain take to react plus the distance your brakes need to stop the vehicle. At 55 mph, even with perfect tires, dry pavement, and well-maintained brakes, the stopping distance is a little over 400 feet. The driver’s reaction adds roughly 80–90 feet before braking even starts, and the braking phase itself carries about 320–360 feet. Put together, you’re around 400 to 450 feet to stop. That’s why the correct conclusion is that stopping distance would be more than 400 feet.

Stopping distance is the total distance you travel from the moment you notice a need to stop until you come to a complete stop, and it equals the distance your eyes and brain take to react plus the distance your brakes need to stop the vehicle. At 55 mph, even with perfect tires, dry pavement, and well-maintained brakes, the stopping distance is a little over 400 feet. The driver’s reaction adds roughly 80–90 feet before braking even starts, and the braking phase itself carries about 320–360 feet. Put together, you’re around 400 to 450 feet to stop. That’s why the correct conclusion is that stopping distance would be more than 400 feet.

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