To verify the law of composition and resolution of forces.
This consists of machined aluminium table 40 cm. in diameter. Its raised rim has a scale, graduated in 360 degree, mounted on vertical support rod based provided with levelling screws. Body under study is a ring in center of the table fastened by cords passing over four pulleys, attached with the table.
Complete with four pulleys, four weight hangers, twelve weights 2 x 10 gm. 2 x 20 gm. 4 x 50 gm. 4 x 100 gm.