1. The problem statement, all variables and given/known data A load of 10 kg is pulled up a lubricated slideway, set at an angle of 30° to the horizontal, such that the load is accelerated from rest to a velocity of 1 m/s whilst travelling up the plane through a distance of 1 m. The frictional resistance to this motion is 10 N and g = 9.81 m/s2. Using a) d’Alembert’s principle, then b) conservation of energy principles, find: i) the work done in moving the load as described ii) the maximum input power provided by the pulling device. 2. Relevant equations honestly no idea. 3. The attempt at a solution i have done my best to research d'Alembert's princeiples but i cant get a single hint anywhere.