Swinging wonder and the 3rd law of motion

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And note that when Bert and bobie suggest the forces would be unbalanced, they never cite any physics expert making this claim, nor do they offer any mathematical derivation of this claim or any experimental evidence to believe it's true. From conservation of momentum: It may take only N to break the glass and N to break the brick. Well, gravity pulls the ride down when it gets high above the Earth. When the brick hits the glass, they exert equal but opposite forces on each other, say N.

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You will be punching the feather with a really small force.

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THE ABUSE OF NEWTON’S THIRD LAW IN TREATMENT

If you don't want to follow that, please feel free to skip ahead to the paragraph starting with "So You can find a more detailed analysis and the historical background of the third law of motion here. For those who find it difficult to get the equation. Another is, if the flat bit of land happened to be at the top of a hill, or a ledge halfway up a hill, the ball will now roll away down the hill. If you keep punching the sandbag, your shoulders will get tired, while if you keep punching in empty air with full force, your shoulders might suffer internal injury, because you are punching your own shoulder. It will break and the pot will fall to the ground. But the fact remains that it is implied in many types of self-help and mental health literature.

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