What is easier to measure, angle or velocity?

[cchang1989]

In general, on earth, angle is easier to measure with a reference point, but what about measuring something in space (with no reference point?)

 

[Curl]

Angle only makes sense if you have 2 intersecting lines. I'm not sure what you're asking here. This sounds like a linear algebra question.

 

[Pengwuino]

If you're measuring something in space, you really can't measure somethings tangential velocity without measuring its angular velocity as far as I know.

 

[Curl]

Why? Take two snapshots in small time intervals and divide the change in position by the time interval.

You get tangential velocity by definition.

 

[PJC01]

Both angle and velocity are important measurements in the field of science, but their ease of measurement depends on the context in which they are being measured. On Earth, where we have a reference point such as the ground or horizon, angle is typically easier to measure. This is because we can use tools like protractors or compasses to accurately measure the angle between two objects.

On the other hand, measuring velocity on Earth can be more challenging as it requires precise timing and measuring devices. For example, to measure the velocity of a moving object, we would need to track its position at different points in time and calculate the change in position over time. This can be difficult to do accurately, especially for fast-moving objects.

However, in space where there is no reference point, measuring angle becomes more challenging. Without a fixed point of reference, it can be difficult to determine the angle between two objects. On the other hand, measuring velocity in space can be easier as there are no external forces such as gravity or friction to affect the object's movement. This allows for more precise measurements of an object's speed and direction.

In summary, the ease of measuring angle or velocity depends on the specific circumstances and available tools. On Earth, angle may be easier to measure with a reference point, but in space, velocity may be easier to measure due to the absence of external forces. Both measurements are important and have their own challenges, but advancements in technology and techniques continue to make them more accurate and accessible for scientists.