21072-1 Centripetal force demonstrator

The product is composed of a base,hand ring track,aluminum frame,  steel ball, weights etc.
The base φ235.5mm, height 90.5m
Size of suspension ring: 34x12x81mm;
Aluminum track length 500mm;
The function of the instrument is electric rotation. The speed is adjustable. The rotating speed and centripetal force can be displayed respectively,
With memory and zeroing function,
The weight of the weight can be replaced and the spacing distance is adjustable.