The skateboarder descends down a hill from a height of h = 3.0 m. On the plane, he wants to skip an obstacle of unknown length x.
The entry side of the obstacle is formed by a semicircular hill with an opening angle of 30° and a curvature radius r = 2,5 m.
Friction must be ignored.
a) What speed does the skateboarder reach at the bottom of the hill?
b) What speed does the skateboarder have just before he bounces at the top of an obstacle?
c) What should be the maximum length of the obstacle x to skip it?
