• A mass on a string hanging over a pulley holds a car on an incline or accelerates it.
  • Stop the car before it reaches the end of the track.
  • Mass can be added to the car to double or triple its weight.
        (use 10-200 g masses only, elevate one end with 10 x 10 cm block)
        (50g holds car on 1.2m track with supports 15 cm from end)
        (put tarp on floor to catch hanging mass, remove pulley during transport)