using System; using L=Science.Physics.GeneralPhysics; namespace Serway.Chapter39 { /// /// Example07: Relative velocity of Two Spacecraft /// Two spacecraft A and B are moving in opposite directions, /// as shown in Figure 39.15. An observer on the Earth measures /// the speed of craft A to be 0.750c and the speed of craft B /// to be 0.850c. Find the velocity of craft B as observed by /// the crew on craft A. /// public class Example07 { public Example07() { } private string result; public string Result { get{return result;} } public void Compute() { L.Velocity v = new L.Velocity(); v.X = 0.75*L.Constant.SpeedOfLightInVacuum; L.Velocity u = new L.Velocity(); u.X = -0.85*L.Constant.SpeedOfLightInVacuum; L.Velocity up = new L.Velocity(); L.Relativity.LorentzTransformationForVelocity(u,up,v); result+=Convert.ToString(up.X/L.Constant.SpeedOfLightInVacuum)+"\r\n"; } } } //-0.977099236641221