25. A light triangular plate OAB is in a horizontal plane. Three forces, F1-5.0 N, F2= 8.0 N, and F3= 6.0 N act on the plate, which is pivoted about a vertical axis through point O. In the figure, F2 is perpendicular to OB. Consider the counterclockwise sense as positive. The sum of the torques about the vertical axis through point O, acting on the plate due to force's F1, F2, and F3, is: 0.60 m 45% 30° F₁ 1.00 m 0.80 m B F₁ = 5.0N F₂ = 8.0N F3 = 6-ON ₁=0-60m 2=0.80m T₁ = -r, F, Cos (30°) t₁ = -(0-60) (5) (05 (30²) = -2.60 Nm t₂ = √₂ F₂ Sin 900 T₂ = (0.80) (8) (1) = 6.4 Nm T3 = 3 F3 Sin (00) = 0NM
25. A light triangular plate OAB is in a horizontal plane. Three forces, F1-5.0 N, F2= 8.0 N, and F3= 6.0 N act on the plate, which is pivoted about a vertical axis through point O. In the figure, F2 is perpendicular to OB. Consider the counterclockwise sense as positive. The sum of the torques about the vertical axis through point O, acting on the plate due to force's F1, F2, and F3, is: 0.60 m 45% 30° F₁ 1.00 m 0.80 m B F₁ = 5.0N F₂ = 8.0N F3 = 6-ON ₁=0-60m 2=0.80m T₁ = -r, F, Cos (30°) t₁ = -(0-60) (5) (05 (30²) = -2.60 Nm t₂ = √₂ F₂ Sin 900 T₂ = (0.80) (8) (1) = 6.4 Nm T3 = 3 F3 Sin (00) = 0NM
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter8: Rotational Equilibrium And Dynamics
Section: Chapter Questions
Problem 6CQ: A person stands a distance R from a doors hinges and pushes with a force F directed perpendicular to...
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