You're riding on a pogo stick-a vertical stick with a spring at the bottom and foot pads on which you stand.

You're riding on a pogo stick-a vertical stick with a spring at the bottom and foot pads on which you stand. You're holding the top of the stick tightly in your hands and you and the stick are bouncing up and down on its spring. As you land after one particularly high bounce, the spring is becoming more and more tightly compressed. Just before the spring reaches its tightest compression, your velocity is