the first would be a decisecond, which is 1 tenth of a second.
Chat with our AI personalities
You should be 2-3 seconds behind a given point that the vehicle in front just passed. At 65 mph, that is 95 feet per second, so multiply by 2 or 3 and you should be 190-280 feet behind
10-15 feet . You need to be 2 full seconds behind. Pick stationary object vehicle in front passes, then count how long until you pass the same object. Not 2 seconds? Increase you following distance! Another rule of thumb is to stay behind one car length for every 10 miles per hour, so at 35 mph you would want to be 3 and 1/2 cars behind the car in front of you.
5 minutes + 10 seconds = 5 * 60 seconds + 10 seconds = 300 seconds + 10 seconds = 310 seconds
Answer: 2.8 seconds has 2.8 seconds.
9.84 seconds is seconds only. It means 9840 milli seconds.