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Jan 14, 2023 at 21:47 comment added FourierFlux Oh you're right, for some reason my mechanics book kept talking about line of action along the COM. I keep forgetting this.
Jan 14, 2023 at 21:28 comment added John Darby Comment about force seems wrong. Any net external force causes acceleration of CM. Torque depends on point about which it is evaluated. For example, ball rolling down incline. Torque from friction with respect to CM is not zero, torque due to friction with respect to point on incline is zero. See ethz.ch/content/dam/ethz/special-interest/mavt/….
Jan 14, 2023 at 3:17 vote accept FourierFlux
Jan 14, 2023 at 3:17 comment added FourierFlux I see, for some reason one of my books talked about the line of action directed towards the COM is the only component which would impart linear acceleration and the perpendicular component would only impart torque
Jan 13, 2023 at 22:08 history answered John Darby CC BY-SA 4.0