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Direction of torque vector tilting a spinning top?
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[QUOTE="tiny-tim, post: 4606778, member: 112022"] Hi Esoremada! :smile: the [URL="https://www.physicsforums.com/library.php?do=view_item&itemid=175"]torque[/URL] to cause a constant rotation is [I]zero[/I] (same as the force to cause a constant velocity is zero) in the diagram, the vector [B]L[/B] (the [URL="https://www.physicsforums.com/library.php?do=view_item&itemid=313"]angular momentum[/URL]) for the initial rotation is pointing into the page the new [B]L[/B] is the vector for the new angular momentum the change in angular momentum, ∆[B]L[/B], is the difference, ie the short vector to the right [INDENT][I]all the above is on the RHS of [B]τ [/B]= d[B]L[/B]/dt[/I][/INDENT] the torque that the question asks for is on the LHS … obviously, it equals lim ∆L/∆t on the RHS :wink: [/QUOTE]
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Direction of torque vector tilting a spinning top?
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