Q:

Do cars traveling at 35 mph need approximately feet to stop?

A:

Quick Answer

A car traveling at 35 miles per hour is traveling at 51.3 feet per second and needs approximately 59 feet to stop. The perception-reaction distance, the time it takes a driver to recognize the need to stop and apply the brakes, is 77 feet, making total stopping distance 136 feet.

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Full Answer

Highway traffic and safety engineers use the general guideline that, in dry conditions, the average driver can safely decelerate a car or light truck with reasonably good tires at a rate of 15 feet per second. According to CSG Network, car manufacturers claim unrealistic stopping distances, often stating at 60 miles per hour their cars stop in 120 to 140 feet.

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