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- 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) |