Distance, speed and acceleration – WJEC Velocity-time graphs of motion. ... In the first 10 seconds this is the area of the triangle, ½ × 10 s × 40 m/s = 200 m.

A home-brewed graphing calculator called Open SciCal promises to put a powerful machine built entirely from open-source hardware into the pockets of quant jocks and statisticians. “This is for ...