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    Could someone please explain how the shape of an object affects its stability - and what does do the terms pivot, moment and line of action of weight have to do with this?
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    The greater the surface area of the base of an object, the greater its stability. Think about trying to balance a toothpick on its end... It would just tip over. In order for an object to be stable, you want its centre of mass to be in the middle of its area that touches the ground. A pivot is a point about which an object can gain a turning force or a moment, where the moment applied is equal to the "Force X Perpendicular distance from pivot". The line of action of the weight is the same as the centre of mass. I hope this helps!
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    (Original post by Goal94)
    The greater the surface area of the base of an object, the greater its stability. Think about trying to balance a toothpick on its end... It would just tip over. In order for an object to be stable, you want its centre of mass to be in the middle of its area that touches the ground. A pivot is a point about which an object can gain a turning force or a moment, where the moment applied is equal to the "Force X Perpendicular distance from pivot". The line of action of the weight is the same as the centre of mass. I hope this helps!
    Yes, thank you so much
 
 
 
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