Description

To provide a simple demonstration of the relationship between friction and reaction. Kit comprises wrap-free wood board, 760x150x20mm thick, with steel eye ring in one end edge, 10 stainless steel rollers 190mm long x 13mm diameter, 4 wood blocks 230x115x20mm thick, one of which has a steel eye in one edge, and a stout metal crank handle in a U shaped bracket, 90x50mm, to low board on rollers. Without spring balance.

ACCESSORY: spring balance 1kg.