Joke Collection Website - Joke collection - When Mr. Shao inserted the bamboo pole into the bottom of the river and pushed it back hard, the boat moved forward on the water. Why is this?

When Mr. Shao inserted the bamboo pole into the bottom of the river and pushed it back hard, the boat moved forward on the water. Why is this?

When Shao Gong inserts the bamboo pole into the bottom of the river and pushes it back hard,

a force occurs between the bottom of the pole and the contact surface with the river bottom,

According to the interaction of forces,

the contact surface gives the rod a forward force,

pushing the boat forward.

The solution is obtained.