An 8.3kg crate is pulled 4.9m up a 30? incline by a rope angled 19? above the incline. The tension in the rope is 120N and the crate's coefficient of kinetic friction on the incline is 0.22.
a) How much work is done by tension, by gravity, and by the normal force?
b) What is the increase in thermal energy of the crate and incline?