Inclined Plane with angle measurer, Pan and roller included

Determine the degree of friction in relation to an incline. A metal based board measuring 45 cm x 15 cm, hinged at one end supporting a scaled planed board. The planed section can be inclined and fixed at any angle from 0-45 °. to the horizontal measured on the attached angle measurer. The end of the inclined board features an adjustable pulley wheel from which masses can be suspended. Without weights. Pan and roller included.