t=2*((0.640817*sin(3*PI/180) 5/7) 1)/(7 0.5 9.8)*x,0.06 x*t-1/2*0.5*9.8*t^2 1/2×((5/7 x-2/7 (5/7 0.640817 (x sin(3*PI/180))))^2/0.065)/9.8=1

Uh oh! Wolfram|Alpha doesn't run without JavaScript.

Please enable JavaScript. If you don't know how, you can find instructionshere.Once you've done that, refresh this page to start using Wolfram|Alpha.