% change in KE A sled is being pulled across a horizontal patch of snow. Friction is negligible. The pulling force points in the same direction as the sled's displacement, which is along the +x axis. As a result, the kinetic energy of the sled increases by 36.7%. By what percentage would the sled's kinetic energy have increased if this force had pointed 62.2° above the +x axis? i'm not sure how to even begin this problem... i'm guessing i should use the change in KE = Work but i'm not sure how to go about it. help? thanks!