Question

You observe and video a little kid take a spill and slide to a stop at the skating rink. By analyzing the video on your cell phone, you know the little kid's mass was m = 40 kg, and his initial speed was vi = 4.5 m/sec. Furthermore, your uncle runs the rink, so you know the friction force f on the little kid: f = 20.3 N. Calculate: the stopping distance to the nearest 0.1 m. E.g., if your answer is 34.881 m, then type 34.9 into the answer box.

Answer 1