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.
honestly no idea.
The Attempt at a Solution
i have done my best to research d'Alembert's princeiples but i cant get a single hint anywhere.