The true speed of a moving car on the Earth, if you want to be very precise, would be the speed of the car with respect to the ground

Is this true?

yeah it is true

yeah it is true

The true speed of a moving car on the Earth, if you want to be very precise, would be the speed of the car with respect to the ground

Is this true?

Since you said "on the earth" as opposed to "with respect to the earth",
if you want to really get precise, you might want to add, or subtract, the rotational surface speed of the rotating earth.

For instance, the equatorial surface speed of the earth is ~1037.5 mph. If a car was traveling eastward on the equarot at a speed of 60 mph, its true speed with respect to the center of the earth would be 1097.5 mph.

Yes, that is correct. When we say the true speed of a moving car on the Earth, we are referring to the speed of the car with respect to the ground. However, if we want to be extremely precise, we should also consider the rotational speed of the Earth.

The Earth is constantly rotating on its axis, which means that different parts of the Earth's surface have different speeds. The fastest rotational speed is at the equator, where the surface speed is approximately 1037.5 miles per hour (mph).

So, if a car is traveling eastward on the equator at a speed of 60 mph, its true speed with respect to the center of the Earth would be the sum of its speed relative to the ground and the rotational speed of the Earth. In this case, the car's true speed would be 60 mph + 1037.5 mph = 1097.5 mph.

It's important to note that this level of precision is usually not necessary in everyday situations, but it can be relevant in certain scientific or engineering calculations.