Now, we will learn about Velocity Time Graphs . Velocity-Time Graphs: To draw velocity time graphs, we will use the three equations of motion. Case 1: Velocity-time graphs with constant velocity (zero acceleration) When the velocity is constant, the velocity time graph, with Y-axis denoting velocity and X-axis denoting time, will be like: As clear from the graph, the velocity is constant (c) throughout the time interval.
Nikola Tesla first invented the radar because he knew the America needed help in World War I since German U boats sank hundreds of our boats. Sure it could only detect roughly 6feet out, but it was a start.
Better known as radar the invention was to turn the tide of the Battle of Britain in favour of the vastly outnumbered Royal Air Force. Ultimately it is credited with saving Britain from invasion during the Second World War. Currently Watson-Watt is little known outside his home town of Brechin in the north-east of Scotland.