Representing Motion on Speed-Time Graphs – Viewing the motion
A cart with a fan unit is shown in the picture below. When released from rest, it would normally speed up to the left. Suppose, however, the fan cart was first given a strong push to the right.

Now watch a movie from a simulator that shows the resulting motion of the cart/fan. (The movie includes the speed arrow.)
Transcript / Long description
If the cart and fan unit shown in the picture below were released from rest, it would normally speed up to the left. Suppose, however, the cart/fan was first given a strong push to the right.
Now watch a movie from a simulator that shows the resulting motion of the cart/fan. (The movie includes the speed arrow.)