A 75 kg snowboarder has an initial velocity of 5 m/sec at the top of a 28 degree incline. after sliding down the 110 m incline which has a kinetic coefficient of friction of 0.18, the snowboarder has attained a velocity of v. the snowboarder then slides along a flat surface for which a coefficient of kinetic friction is 0.15 and comes to rest after a distance x. determine the distance x.