Thanks Ray, it really was a simple question!
"t seconds after passing O" means that you start counting at zero at the Origin :)
The correct answer is: v = -t2 + 2t + 8
Homework Statement
A particle moves along a straight line so that its acceleration t seconds after passing a fixed point O on the line is (2 - 2t) cm/s2. Three seconds after passing O, the particle has a velocity of 5 cm/s. Find and expression, in terms of t, for the velocity of the particle...