What is the fastest motion that can be measured in any frame of reference? (1 point) Responses 186,000 m/s 186,000 m/s 186,000 km/s 186,000 km/s 300,000 m/s 300,000 m/s 300,000 km/s
The speed of light in a vacuum is the fastest motion that can be measured in any frame of reference, and it is approximately 300,000 kilometers per second (km/s), which is equivalent to around 186,000 miles per second (m/s).
Correct answer: 300,000 km/s