Oscar was so bored that he decided to find himself another entertainment. He collected a lot of rubbish from the garbage cans and tried to arrange a launch competition for a long distance. The first thing he got in his hands was the skin of an overripe banana. He put it on the catapult and started straight into the sky. However, this thing did not fly to a long distance due to the fact that the force of pressure on the catapult was insufficient. Ask your kid to help the character cope with the task. The child must press and pull the trolley so tightly that it shoots in the right direction. At the same time, test which of the items requires more effort to pull the spring.