Holey labyrinth

What you can do here
Put the ball into the ring and place it in the “START” position. By pulling two ends of the string, take the ball through the holey labyrinth to the hole tagged “META” (“finish”). You can compete with another person as the model is two-sided. The winning ball will emerge first in the outlet located on the side of the model.

How it works
A direction in which the ring with the ball movement is determined by the net force, which is a result of summing forces from both ends of the string. The model refers to the composition of vectors. Vectors are used to describe physical quantities like force or velocity. Every vector has magnitude, sometimes called modulus (for example 5 N force), starting point, direction and sense.

Interesting facts
The velocity vectors of two cars that are moving along a straight road in the opposite directions have the same direction but opposite sense.