What is speed? Definition. Units of speed. Calculate one of distance, speed or time given the other two variables.

Multiplication and division skills are useful when solving speed, distance and time problems. It may be useful to review how to calculate speed, distance and time.

This video will help you in understanding the shortcut formulas for solving Time, Speed and Distance problems quickly attempt in any competitive exam.

But using speed to calculate distance leaves no way to calculate any “peculiar motion” the galaxy might have in addition to the motion that is part of the overall expansion.

The only way you could use the distance method for finding the speed of light is if you knew the exact time that the light left from Jupiter to travel to Earth.