1. The problem statement, all variables and given/known data A 50 kg mass is pulled at a constant speed up a 20° incline which is 12m long and 4.1m high. μk = 0.32 a) find the work done by tension, T. b) find the work done by friction. c) find the work done against gravity. 2. Relevant equations W = F x D Work = force x Distance W = Fd x cosθ 3. The attempt at a solution I still confused on the concept of this. i know that you have to use Fd x cosθ, but i am confused on how to set it up.