This complete kit includes an inclined plane with pulley and protractor, a Hall's cart, and a standard weight hanger. Use this inclined plane set to demonstrate resolution of forces, uniform and accelerated motions, and kinetic and potential energies. The wooden inclined board measures 60 cm L x 10 cm W, and can be set at any angle between 0 and 45 degrees. The two scales on the protractor allow angle measurements to be made directly or by trigonometry. The aluminum wheel and cone bearings on the Hall's cart help minimize friction on the inclined plane. The mass of the aluminum weight hanger is 50g. An instruction and experiment manual is included Ages 13 and up.