Question

When a skater pushes a wall with his hands, he rolls backwards. Why?​

Answer 1

If a boy wearing roller skates stands facing a wall and pushes the wall with his hands, the boy finds himself moving backwards, away from the wall. Actually, when the boy exerts a force on the wall by pushing it with his hands, then the wall exerts an equal force on the boy in the opposite direction. Since, the boy is wearing roller skates, the opposite force exerted by the wall makes him move backwards.

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Answer 2

Answer:

Actually, when the boy exerts a force on the wall by pushing it with his hands then the wall exerts as equal force on the boy in the opposite direction