
Explanation
Stability depends on center of mass height above base Steps: - Stability of an object on a table is determined by the height of its center of mass (G) relative to its base of support; lower height increases stability by requiring larger tilt to topple. - For equal masses, compare G positions: the highest G indicates least stability, as torque from gravity acts farther from pivot during tilt. - Examine each option's G: assume A has low G near base, B has G high above narrow base, C has G low with wide base, D has moderate G. - Select the option with highest G, which is B, as it topples easiest under small disturbance. Why B is correct: - B has the highest center of mass, violating the stability principle that lower G height reduces tipping torque (τ = mg * h * sinθ, where higher h lowers stability threshold). Why the others are wrong: - A: Low G near base provides high stability. - C: Wide base and low G ensure maximum stability. - D: Moderate G height …
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