Well, here, the realization is that acceleration is a function of time. It's just the derivative of velocity, which is the second derivative of our position, which is just going to be equal to the derivative of this right over here. And so I'm just going to get derivative of three t squared with respect to t is six t, derivative of negative eight t with respect to t is minus eight and derivative of constants is zero. So it's just going to be six t minus eight. So our acceleration at time t equals three is going to be six times three, which is 18 minus eight. So minus eight, which is going to be equal to positive 10. All right, now they ask us, what is the direction of the particle's motion at t equals two?