1. I need to create a graph of a position function where a particle at point pi, has zero velocity, and positive acceleration. 2. Relevant Equations f(x)=sin(x); f'(x)=cos(x); f''(x)=-sin(x) 3. Attempts at a Solution If I choose sin(x) as my function, then velocity is zero at pi. I am unclear if I have this next part right. Since the slope of the velocity function is increasing at pi, acceleration is therefore positive. I think I have that right. But I am not sure.