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How do you know that a speedometer tells you the instantaneous speed of a car?
Wiki User
∙ 6y ago
Because when you look at the speedometer it is telling you your speed at that particular instant in time, it changes from instant to instant.
Abdullah Schuster
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What is a sentence for instantaneous speed?
Instantaneous speed is, essentially, instant speed. An example sentence would be: The Camaro's instantaneous speed surprised most of the watchers.
When is instantaneous speed used?
When you need to know the exact speed at an exact time.
Does a cars speedometer measure speed or velocity or both?
Yes it does, it measures miles per hour (mph) and kilometers per hour (kph), which is basically your speed. Some cars have speedometers that go up to a higher or lower speed, but don't worry about that. Also there tends to be more kilometers per hour than miles per hour on any given speedometer.
Does a car has speedometer velocity are both?
A car has a speedometer. When you read the speed that it indicates, and you know the direction in which you're driving, then you know the car's velocity.
Does a speedometer both measure speed and velocity?
No. A speedometer only measures speed. You also need a position sensor or direction vector coupled with the speedometer in order to know velocity, because velocity includes direction.
Does the speedometer of a car read average speed or instaneous speed?
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.
Does the spedometer of a car read average speed or instantaneous speed how do you know?
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.
What is a sentence for instantaneous speed?
Instantaneous speed is, essentially, instant speed. An example sentence would be: The Camaro's instantaneous speed surprised most of the watchers.
What is the speed at any instant time known as?
Instantaneous speed is speed at any instant in time.
How do you measure the speed in NASCAR?
They measure engine speed in RPM, but car speed in MPH. If you want to know how they know how fast the cars go from the stands or the officials' booths, that is what radar guns are for. Inside the cars, the speedometer tells how fast they are going, and the tachometer tells how fast the engine is running.
When is instantaneous speed used?
When you need to know the exact speed at an exact time.
Does a cars speedometer measure speed or velocity or both?
Yes it does, it measures miles per hour (mph) and kilometers per hour (kph), which is basically your speed. Some cars have speedometers that go up to a higher or lower speed, but don't worry about that. Also there tends to be more kilometers per hour than miles per hour on any given speedometer.
Does a car has speedometer velocity are both?
A car has a speedometer. When you read the speed that it indicates, and you know the direction in which you're driving, then you know the car's velocity.
Does a speedometer both measure speed and velocity?
No. A speedometer only measures speed. You also need a position sensor or direction vector coupled with the speedometer in order to know velocity, because velocity includes direction.
What does a cars speedometer measure?
A cars speedometer measures speed. A speedometer is a gauge that displays the speed of a vehicle so the driver will know how fast the vehicle is moving.
Why is there a speedometer cage in all vehicles?
to know the radio of the vehicales who much speed is going
What is the relation between instantaneous speed and instantaneous velocity?
If I drive away from my house at 8:00 in the morning and return at 6:00 PM that same evening with 50 more miles showing on the car, you know immediately that my average speed for the day was 5 mph. But you don't know a thing about how much of that time I was stopped, how much in motion, or what my speed was at any moment between 8 and 6, because there's no necessary relationship between instantaneous and average speed. I guess it's probably true to say that there has to be some instant during any period of time when the instantaneous speed must be equal to the average speed during the same period. That sounds like a nice theorem, and its proof ought to be good for some mathematical recreation, but it doesn't seem too useful.
