Ant-Man is walking around on top of a wooden plank that rests atop two thin, vertical steel pillars, which are bolted into the ground. Ant-Man's mass is m₁ = 80.0 kg, but he is small enough to be treated as a point particle. The plank (m₂ = 11.7 kg) has a length of L = 2.44 m, with the left end flush against the edge of the left pillar. The separation distance between the pillars is d 1.50 m. ГТ T Suppose that Ant-Man walks far enough out from the right pillar so that the plank is just about to start rotating. What will be the magnitude of the force from each of the pillars on the plank at this time? (Hint: begin your analysis by thinking about the torques acting on the plank, and note that the forces from the two pillars are not the same.) How far out from the right pillar could Ant-Man walk before the plank starts to rotate?
Ant-Man is walking around on top of a wooden plank that rests atop two thin, vertical steel pillars, which are bolted into the ground. Ant-Man's mass is m₁ = 80.0 kg, but he is small enough to be treated as a point particle. The plank (m₂ = 11.7 kg) has a length of L = 2.44 m, with the left end flush against the edge of the left pillar. The separation distance between the pillars is d 1.50 m. ГТ T Suppose that Ant-Man walks far enough out from the right pillar so that the plank is just about to start rotating. What will be the magnitude of the force from each of the pillars on the plank at this time? (Hint: begin your analysis by thinking about the torques acting on the plank, and note that the forces from the two pillars are not the same.) How far out from the right pillar could Ant-Man walk before the plank starts to rotate?
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter10: Rotational Motion
Section: Chapter Questions
Problem 28P: A uniform beam resting on two pivots has a length L = 6.00 m and mass M = 90.0 kg. The pivot under...
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