∫ π/8 * cos(π/4 * t) dt = 1/2 sin(π/4 * t)

∫ 1/2 sin(π/4 * t) dt = -2/π cos(π/4 * t)

How can you describe the motion with a sketch? Well, that train oscillates, so that's a start.

]]>a = Pi/8*cos*Pi/4*t

We need to find the velocity and displacement of the train t seconds after it starts.

And secondly how can we describe the trains motion, using a sketch????

]]>