Mechanics System 2 – code: 4861.29

Mechanics System 2

Code: 4861.29

An advanced low friction dynamics system to study elastic and inelastic collisions between carts

The Mechanics System 2 allows us to verify many kinematics and dynamics principles by using a low friction system.

The basic theory involves topics such as Newton’s Laws of Motion, Conservation of Energy and Momentum, Friction and many others.

Size: 50x45x15 cm
Weight: approx. 8 kg
Track Lenght: 117 cm
Weight: 2.4 kg
Packing: external suitcase in aluminium, internal foam to prevent accidental shock.

Equipment Suggested
Electronic Balance (code 2219.30)
RED Motion Sensor (code 4840.12)
RED Sensor Universal Adapter ( code 4831.00)
Tripod Stand (code 4830.46)
RED Photogate Sensor (code 4840.15)
RED Photogate Support for Track Set (code 4831.07)


  • Aluminium Track
  • Electronic Timer
  • Cart
  • Reflection Photogate
  • Release Electromagnet
  • Brake/Bumper for Cart
  • Fixed Support for Track
  • Adjustable Support for Track
  • Pulley with metal rod
  • Aluminium Flag for Cart
  • Bubble Level
  • Neodymium-Iron-Boron Button Magnet
  • Massholder for Cart
  • Slotted Masses Set
  • Plumb Line on Scale
  • Spring Bumper
  • Spring Bumper for Electromagnet
  • Trigger for Cart
  • Pair of Velcro Bumpers
  • Hook for Cart


  • Concept of inertia
  • Conservation of momentum and energy
  • Determination of velocity and acceleration
  • Laws of dynamic
  • Elastic and inelastic collisions
  • Energy conservation
  • Inclined plane
  • Kinetic and potential energy
  • Laws of motion (accelerated, linear uniform)
  • Rolling friction
  • Eddy currents in an aluminium


  • Conservation of momentum and energy
  • Acceleration and velocity
  • Eddy currents
  • Elastic and inelastic collisions
  • Friction
  • Law of Inertia
  • Kinetic and potential energy
  • Newton’s 1st Law
  • Newton’s 2nd Law
  • Rectilinear uniform motion
  • Rolling friction
  • Uniform accelerated
EXAMPLE OF USE: Impulse – momentum theorem

Experimental verification of the theorem.

Using the Altay Mechanics System 2 we can induce a collision between two carts. The carts experience a force for a given amount of time resulting in its mass undergoing a change in velocity. Another way of expressing this is to say that this results in a change of momentum. There are four physical quantities which can be investigated: force, time, mass and velocity change. The force multiplied by the time is known as the impulse and the mass multiplied by the velocity change is known as the change in momentum. The impulse experienced by the cart is always equal to the change in its momentum.
This can be approximated as follows: F Δt = mΔv

4861.29 - Impulse-momentum theorem experimental testing
Impulse-momentum theorem experimental testing