The position of a particle is s(t)=t3−6t2+9t+1s(t) = t^3 - 6t^2 + 9t + 1s(t)=t3−6t2+9t+1. When is the particle accelerating?
t>2t > 2t>2
t<2t < 2t<2
t>3t > 3t>3
t<1t < 1t<1