The position of a particle moving along $x$ axis is given by $x=-6t^2+4t^3,$ where $x$ is in meters and $t$ is in seconds.

a$)$ Graph the velocity of the particle $($displacement vs time graph$)$ at: $t=0[s],t=1[s],t=2[s],t=3[s],t=4[s]$

b$)$ Was that velocity positive or negative based on the graph?

$0\mathrm{.}1p.$

c$)$ Graph the acceleration of the particle $($velocity vs time graph$)$ at: $t=0[s],t=1[s],t=2[s],t=3[s],t=4[s]$

d$)$ Was that acceleration positive or negative based on the graph?

$0\mathrm{.}1$ p$.$