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Well of Death: Physics behind it
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[QUOTE="NTesla, post: 6830518, member: 682219"] Somehow, I already had the understanding of the concept just not in the terms of "line of action" as being distinct from a vector. Though, technically it is more comprehensive to write it that way.. This comment of haruspex had me wondering, that what is the reasoning behind him saying that the net reaction from the wall must pass through the mass centre of the rider in case of bike on the vertical wall. After discussing on this topic: (1) Would it be right to say that the term net reaction from the wall is the vector sum of normal reaction and friction as both originate at the point of contact of the tyre and the wall ? (2) What is the reasoning for which haruspex said that it(net reaction from the wall) must pass through the centre of mass of the rider in case of bike ? (3) Can we not take the forces individually as i have pictured it in my [URL='https://www.physicsforums.com/threads/well-of-death-physics-behind-it.1047507/post-6830228']post#41[/URL] and then calculate the torque due to all forces about the point of contact of the bike's tyre on the wall and then equate that torque to zero. Wouldn't that give the right answers. [/QUOTE]
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