Any one of the pendulums can be adjusted without disturbing the others. 28cm long clamp consists of a support arm attached to a rod clamp. Thumb screws keep suspended cords secure.NEWTONIAN DEMONSTRATOR OR COLLISION BALLS

n ideal simple pendulum consists of a heavy point mass (called bob) tied to one end of a perfectly inextensible, flexible and weightless string. In practice, we make it by tying a metallic spherical bob to a fine cotton stitching thread.

Technical Specification:

Rectangular  Base

Type : Cast Iron

L x B : 8 inch x 4 inch

Rod

Type : M.S

Diameter : 9 m

with key for tightening

Suspension Wire

Type : MS

Width : 28 Gauge

Clamp : with chuck for hanging 

wire

Metal Bob : Dia 1 inch M.S chromed