Discover how to calculate the modulus (magnitude) of a velocity vector! This tutorial explains how to find the speed of an object from its velocity components in both 2D and 3D motion.

Save guides, add subjects and pick up where you left off with your BBC account. A man walks a distance of 350 m. His home is 1000 m away. Calculate how far he needs to walk to get home.

Calculating the mean is one of many methods of finding an average. To calculate the mean, you add up all the numbers in the set, then divide the total by the number of numbers you added.

I guess that settles the matter of who is more profitable." Observing the difference in magnitude between the two numbers is not altogether uninteresting, but you're bound to feel that such an ...