If the speed of the skateboarder at point A is v=1.2m/s, what is her speed at point B? Assume that friction is negligible. Point A = 2.7 m. Point B = 1 m.

The speed of the skateboarder at point B is the same as the speed at point A, since friction is negligible. Therefore, the speed at point B is v=1.2m/s.