11.1 A snowboarder starts from rest at the top of a double black diamond hill. As she rides down the slope, GPS coordinates are used to deter- mine her displacement as a function of time: x = 0.5 + ?...

Extracted text: 11.1 A snowboarder starts from rest at the top of a double black diamond hill. As she rides down the slope, GPS coordinates are used to deter- mine her displacement as a function of time: x = 0.5 + ? + 2t, where x and t are expressed in feet and seconds, respectively. Determine the position, velocity, and acceleration of the boarder when t 5 seconds. %3D