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Unformatted text preview: 1 . 8 m 56 kg 2 5 EF 152 Spring, 2009 Lecture 2-2 4 Example: Step Ladder 56 kg EF 152 Spring, 2009 Lecture 2-2 5 Stability If an object is in equilibrium, and given a small displacement, there are three possibilities: _______ equilibrium: object returns to original position Example: ball hanging from a string __________ equilibrium: object moves further away from original position Example: pencil balanced on point _________ equilibrium: object stays at new position Example: sphere on a flat table Neutral Unstable Stable EF 152 Spring, 2009 Lecture 2-2 6 Example: Stability A truck is parked on an inclined road as shown. Determine the slope of the road that causes the truck to tip over. Center of mass 2.4 m 1.6 m 2.2 m...
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- Spring '08