A 300 kilogram crate is on a rough surface inclined at 30o. A constant force P=2400 Newton is applied horizontally to the crate. The force pushes the crate a distance of 3.0 meter up the incline, in a time interval of 9.0 second, and the velocity changes from v1=0.7 m/s and v2=2.9 m/s. Obtain what is the work done by the weight?