You are on in line skates at the top of a small hill your potential energy is equal to 1,000 joules the last time you checked your mass is 60.0 kg what is your weight in newtons what is the height of the hill

a.) weight = mass × acceleration (due to gravity) 
               = 60×9.8                = 588 N 
b.) potential energy = mass x gravity x change in height
                   1,000 = 60.0 x 9.8 x h                         h =  1.7 m     
c.) kinetic energyF = potential energyI                     KEF = 1/2mv2 
                         PEI = mgh = 1,000 J
                    1/2mv2 = 1,000                    1/2(60.0)v2 = 1,000 
                             v2 = 33.33                              v = 5.77 m/s 

Iam not sure , but probably 750 or 7.5