You're sitting in physics class, working on a traditional problem involving forces and acceleration, when you start to wonder where these terms even came from. Were they just dreamed up to bring ...

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 ...

Plot a graph of resultant force F in N on the y-axis against acceleration a in m/s 2 on the x-axis. Draw the line of best fit. The graph is a straight line through the origin. This tells us that ...