We could only do that if this tension was directed vertically upward, but it's not. No, that is not r. So I'm gonna say that mg is negative. If I multiply both sides by m.
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So in terms of y-directed forces, downward, typically, the convention is that you choose that to be negative. Rope swings are recreational ropes used for propelling people into bodies of water. We'll again use trigonometry. Video transcript - [Narrator] I want to show you how to do a slightly more sophisticated centripetal force problem, and this one's off rope swinging classic. So that's the tension in the rope.
This is how not to back-flip off a rope swing
But there's a really common mistake that people make here. People get a little concerned now. So this is going to equal the net force in the vertical direction. But the tension is not the rope.