Here's a good example. A car driver sees a family of ducks crossing the road in front of her. She brakes for 1·5 s and took 1·8 s to stop. What is her reaction time? The total stopping time was 1·8 s. This is made of two parts: thinking and braking. The braking time was 1·5 s, so the thinking (reaction) time was 0·3 s. By the way, she stopped in time - lucky she wasn't driving too fast! Cute photo credit: Sherwood Park & District Chamber of Commerce
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