Editor's Note: The Hyperloop is a totally imaginary transportation device that has captivated entrepreneur Elon Musk, who keeps talking about it. First imagined at least 100 years ago, it would ...

Of course with a human jump, I can look at the total time off the ground (the hang time) as well as the jump height. Since the only force acting on a real human on the real Earth is the gravitational ...

In a distance-time graph, the gradient of the line is equal to the speed of the object. The greater the gradient (and the steeper the line) the faster the object is moving.