The car took 7 hours to travel 315 miles at 45 mph. Practise calculating speed, distance and time in this quiz. Calculations are very important to plan and execute safe and successful space flights.

For most videogames, I would assume that the time scale is real time and that it takes place on Earth with an acceleration of -9.8 m/s 2. I could then solve for the distance scale to see how big ...