At the Porsche test track, we learn the difference between speed and velocity.

Learn the difference between distance, displacement, speed and velocity, and how to calculate distance, speed and acceleration.

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.

Now that I have the angular velocity of the planet, I can just calculate its position in each time step as: Really, it doesn't matter what values you use for G and M.

[td0g]’s design makes use of two light gates spaced some distance apart, and the time that an object takes to travel between the two is measured and used to calculate velocity.