1. The problem statement, all variables and given/known data A skateboarder starts up a 1.0 m high 30 degree ramp at a speed of 7.0 m/s. The skateboard wheels roll without friction. How far from the end of the ramp does the skateboarder touch down? 3. The attempt at a solution ramp length= h=1sin30=1/2 length=2m v^2=vi^2+2ad v^2=7^2+2(-9.8)(2) vf=3.13m/s vf=vi+a(Dt) 0=3.13+-9.8(t) delta t=.32s Xf=xi+vi(dT) x=0+3.13(.32) xf=1.0016 yf=yi+vi(dt)+1/2a*(dt)^2 yf=1+0(.32)+1/2(-9.8)(.32)^2 yf=0 The skateboarder lands 1.0016 meters from the end of the ramp. I know I'm missing something somewhere... can someone please help me find it.