A function s(t) represents the position of an object based on time t in seconds. Determine what the following represent in the context of the problem.
a) Represents the positoin of the object at 5 seconds
b) Represents the average velocity between 5 and 22 seconds
c) Represents the average velocity between -2 and 4 seconds
d) Represents the instantaneous velocity at 3 seconds
Zero time is arbitrary...... say you are running for a while and cross a line.....we can call that time zero...you were running before you crossed that line....you were running at time t = -2 and time = -10 etc.
Or consider rocket launches where they say t-minus 4 t-3 t-2 t-1 ignition ! time zero is ignition in this case ....but things were going on during t-3 t-2 t = -1 etc