Originally Posted by

**rawkstar** let v(t)=3t^2-12t be the velocity of a particle moving along the x axis for the time t, t>(greater than or equal) 0,

When t=0,the particle is at x=-6

A) determine the position of the particle at t=a

B) write an expression for the speed of the particle at any time t

C) in which direction does the particle begin moving and when does it turn around

D) when, if ever, is the particle at the origin

Ok so i haven't even attemt part A because I don't even know what a means, im guesing you have to integrate it somewhere tho