A particle moves along `x`-axis with constant acceleration and its `x`-position depend on time `t` as shown in the following graph (parabola),then in interval `0` to `4 sec`.
A. relation between x-coordinate & time is `x=t-t^(2)//4`
B. maximum x-coordinate is 1m
C. total distance traveled is 2m
D. average speed is `0.5m//s`
