The speedometer in a car does not measure the car's velocity because velocity is an (A) vector quantity and has a direction associated with it (B) vector quantity and does not have a direction associated with it.
The speed you read from your speedometer is called your "indicated speed." This value represents the speed at which your vehicle's wheels are rotating, not necessarily your true ground speed due to potential inaccuracies in the speedometer reading.
-- Mark its location as you start your stopwatch. -- After some time has passed, mark its location again as you stop the stopwatch. -- Measure the distance between the two marks. -- Read the elapsed time on the stopwatch. -- Divide (distance traveled)/(time to travel the distance) . The quotient is the object's average speed during the interval. The shorter the measurement interval, the closer the result is to an instantaneous speed.
A speed reader can typically read around 800-1000 words per minute, compared to the average reading speed of 200-300 words per minute. However, some highly skilled speed readers can read up to 2000 words per minute.
-- measure the distance between the place where he started and the place where he ended up, or read the total distance he covered from the odometer in his car -- divide that number by the length of time he spent covering that distance -- the answer is his average speed over that distance, and during that time
To find your average reading speed, you'll need a book with familiar words and subject. Don't time your reading speed on new words, concepts or subjects you won't get a fair result. Set a timer for 1 minute 1 second. Get your book ready and start your timer. When it goes off, note what word you were on and count back to where you started reading. It's that simple.
instantaneous speed
instantaneous speed. =)
To be pedantic... In a car with a digital speedometer, speed is NOT instantaneous in the sense that it is a measure of distance per unit time. It does this by measuring a change in distance over a very short period of time to *approximate* the instantaneous speed. If the time period is a small fraction of a second you wouldn't know the difference! For older cars with analog speedometers the speed is instantaneous as it directly translates the speed at which your wheels are turning.
In a car, the speedometer measured Instantaneous speed. This comes from the assumption that the car does not slow down and speed up fast enough for the speedometer to be able to give an average of the changing speed.
The speed you read from your speedometer is called your "indicated speed." This value represents the speed at which your vehicle's wheels are rotating, not necessarily your true ground speed due to potential inaccuracies in the speedometer reading.
instantanous speed
Average reading speed tells how fast people can read. Usually people are able to read three pages in couple of minutes if text is easy and understandable.
Speed reading is used to read information at rates faster the average reading speed AND at comprehension and understanding levels better than the average.
The average speed of the vehicle relative to the road.
This could be a very nice little exercise, but you've left out an important piece ofinformation: We need to know what time it was when the odometer read 2100.
-- Mark its location as you start your stopwatch. -- After some time has passed, mark its location again as you stop the stopwatch. -- Measure the distance between the two marks. -- Read the elapsed time on the stopwatch. -- Divide (distance traveled)/(time to travel the distance) . The quotient is the object's average speed during the interval. The shorter the measurement interval, the closer the result is to an instantaneous speed.
it depends if you are a speed reader, or have trouble reading. jimmy Carter, a speed reader, could read 2000 words a minute. No I am a 13 year old who doesnt have troubles reading.