Block A and B weighing 40 lb and 30 lb, respectively, rest on an inclined plane as shown in the figure. They are connected by a weightless cord passing over a frictionless pulley.

College Physics
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Author:Raymond A. Serway, Chris Vuille
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Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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don't convert the lb into kg

Block A and B weighing 40 lb and 30 lb, respectively, rest on an
inclined plane as shown in the figure. They are connected by a
weightless cord passing over a frictionless pulley.
a.lf friction between the surface is negligible, determine the angle
O and the tension in the cord that will keep the system in
equilibrium.
b.lf the coefficient of static friction between the surface is 0.20,
determine the angle 0 and the tension in the cord that will keep
the system in equilibrium.
30°
B
Transcribed Image Text:Block A and B weighing 40 lb and 30 lb, respectively, rest on an inclined plane as shown in the figure. They are connected by a weightless cord passing over a frictionless pulley. a.lf friction between the surface is negligible, determine the angle O and the tension in the cord that will keep the system in equilibrium. b.lf the coefficient of static friction between the surface is 0.20, determine the angle 0 and the tension in the cord that will keep the system in equilibrium. 30° B
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