This lesson covers spec points 1.7, 1.8 and 1.9 — plotting and explaining velocity–time graphs, determining acceleration from the gradient, and calculating distance from the area under the graph. • ...

This video explains how the direction and gradient of a line on a velocity-time graph can tell us whether an object is accelerating, moving at a constant velocity or decelerating. Velocity time graphs ...

Swimmer Eric Shanteau placed third in the 200-meter breaststroke at the U.S. Olympic trials with a time of 2:10.05. This gives him an average speed of 1.538 m/s. Of course, this wasn’t his speed the ...