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Older cars have a cable, which is turned by a gear at the rear of the transmission, and this operates a mechanical speedometer. Modern cars have an electronic sensor in the gearbox which is linked by wire to an electronic speedometer.

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16y ago

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What does the speedometer of a car measure?

It measures the rate of travel.IE. the speed the car is traveling at.The speedometer of a car measures speed. It is measured in miles per hour or kilometres per hour (mph or kph).The speedometer of a car measure the instantaneous speed.


What is the speedometer in a car give the car's?

Speedometer can determine a car's normal and maximum speed.


How does a car average speed differ from its instantaneous apeed?

The average speed of a car is how fast it averages over a span of time. Instantaneous speed is how fast the car is moving at any given time which is measured using a real-time speedometer.


If you put larger diameter tires on your car how would the speedometer reading compare to the speed measured by a radar gun?

If you put larger diameter tires on your car, the speedometer reading would be slower than the speed measured by a radar gun. This is because larger diameter tires cover more ground per revolution compared to smaller tires, so the speedometer would underreport the actual speed of the vehicle.


What is measured by an speedometer?

km/h or miles per hour


What makes a car speedometer run when car is off?

its a 1994 cavalier the speedometer runs on its own and will not start it starts when the speedometer is not running it has the vs sensor


What does a speedometer do in a car?

It indicates the speed of the car.


Where is the speedometer on a civic?

The speedometer is on the dash like any other car....


What speed does the speedometer in a car give?

The speed of the car.


How does a car's average speed differ it's instantaneous speed?

The average speed of a car is how fast it averages over a span of time. Instantaneous speed is how fast the car is moving at any given time which is measured using a real-time speedometer.


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.


Not showing speed of car when car is moving?

Your speedometer is broken.