The cart is fitted with a unique suspension system that should protect the cart from damage by dropping or over burdening, but care should be taken to prevent this.


  • When using the track, use the end stops to prevent the carts from leaving the track.
  • Only use low angles of track incline (less than 15 cm of elevation). The system will perform significantly better than traditional dynamics apparatus.
  • After storage, use a soft brush to remove debris from the track grooves.
  • Do not install the magnetic bumper unless you know you will be using them in the practical work.
  • Magnetic repulsion is only for low-speed collisions with other carts whilst using the Dynamics System magnetic end stops. If the speed is high, the repulsion will bounce the carts off the track.


When setting up:

  • Always check the Handedness of the fixtures.
  • Insert the captive bolts required for the light gate brackets first.
  • Insert the support / feet second and move down the track by at least the width of the support.
  • Insert the end stops last.
  • Do not over tighten the securing bolts, you could potentially damage the track.


Both carts provide a spring-loaded plunger:

  • The plunger provides three different forces to move the cart. Each notch is one more than the previous.
  • As you push the plunger in, it will click at each position. A final click position is provided to hold the plunger level with the cart’s exterior.
  • To activate the plunger, tap on the pin on the top of the cart.


The carts and the masses both have a nominal mass of 280 g (weigh before use). For expert work on momentum and collisions, using the F = ma relationship, the mass of the carts and masses should be accurately obtained.