1. The problem statement, all variables and given/known data A person pushes a 10.0 kg mass up a 7.60 m long, 20 degree ramp( mu=.170) with a horizontal force of 70.0N. Find the work done by the person and the heat energy generated by friction. the answer for heat energy i canot get..its supposed to be 150J 2. Relevant equations W=Fd F=ma P=W/t v=vo+at 3. The attempt at a solution [img=http://img80.imageshack.us/img80/4013/helprd8.th.jpg] a)7.14x70 = 500J Fx=70N Fperp=70tan20 ? Fparalell=70/cos20=74.5N ?