1. To push a 16 kg crate up a frictionless incline, angled at 15° to the horizontal, a worker exerts a force of 52.8 N, parallel to the incline. As the crate slides 1.50 m, how much work is done on the crate by the worker's applied force? b] So I got the first part of this question without any problem. The answer is 79.1 J. Its the next part of the question that I'm unsure about: How much work is done on the crate by the weight of the crate? I tried W=Fg(delta x) W=156.8 N (1.5 m) W = 235.2 J But this obviously isn't right. Where am I going wrong? Thanks!