Principle

A cart is repeatedly accelerated to a constant velocity by way
of a mechanical starter system. The runtime of the cart is
determined at various intervals. These values are then used to
determine the average velocity.

Benefits


Accurate results due to measurements with low friciton: cart
with sapphire bearings

Over the entire track length adjustable feet for a very simple
alignment of the track even on small tables

Extrem robust accessories, for example no overloading of cars
due to elastic bearing of base plate, prevent unnecessary
breakdowns

Timer 4-4 can be used for almost every experimental requirement
: distance-time law for four tracks, measurement of speed at four
positions, principles of collisions, measurement of the orbiting
time of a rotary movement, the direct measurement of the duration
of a complete swing of a mechanical pendulum and for short or
long-term measurements with two 8-digit displays by connecting each
of 2 timers