What is hadat?

Difference between constant speed and velocity?

Answer #1:Constant speed is a speed that is maintained and stays the same.Instantaneous speed is a speed that goes up momentarily and thencomes back down.==================================Answer #2:A constant speed is one that has the same value now as it has hadat every previous time of interest, and the same as it will be for everyfuture time of interest.An instantaneous speed is one that conveys no information about anyprevious or future speed, only about the speed 'right now'.I just made this up on the fly. I think it's pretty good.