To calculate distance, speed or time given the other two variables: Draw a formula triangle close formula triangle A tool to help decide which calculation is needed to work out speed, ...

You want to know how much time it takes to travel a certain distance (the distance to the sun) given a speed of 100 mph. So, what we want to calculate is "t." In order to calculate time, ...

To calculate peculiar motion, astronomers need some independent way of measuring distance. That is where the Seven Samurai scientific group came in. They used a clever chain of reasoning.