The following functions give the position as a function of time: i) x = A ii) x

Question:

The following functions give the position as a function of time:
i) x = A
ii) x = Bt
iii) x = Ct2
iv) x = D cos !t
v) x = E sin !t where A;B;C;D;E; ! are constants.
A) What are the units for A;B;C;D;E; !?
B) Write down the velocity and acceleration equations as a function of time. Indicate for what functions the acceleration is constant.
C) Sketch graphs of x; v; a as a function of time.