A uniform beam of length L and mass m is inclined at an angle 0 to the horizontal as shown in the figure. Its upper end is connected to a wall by a rope, and its lower end rests on a rough, horizontal surface. Assume the angle 0 is such that the static friction force between the beam and the surface is at its maximum value. Determine what statement is true. There may be more than one correct answer. The torque produced by the tension force is equal to: TT = TLsin(0) where T is the magnitude of the tension force. If the angle 0 were reduced from its present value, the magnitude of the tension force must decrease in order to restore static equilibrium The static frictional force does not exert a torque on the beam The torque produced by the gravitational force is equal to TG = -mgLsin(0)/2. The coefficient of static friction must equal: Hs = T/mg, where T is the magnitude %3D of the tension force.

A uniform beam of length L and mass m is inclined at an angle 0 to the horizontal as shown in the figure. Its upper end is connected to a wall by a rope, and its lower end rests on a rough, horizontal surface. Assume the angle 0 is such that the static friction force between the beam and the surface is at its maximum value. Determine what statement is true. There may be more than one correct answer. The torque produced by the tension force is equal to: TT = TLsin(0) where T is the magnitude of the tension force. If the angle 0 were reduced from its present value, the magnitude of the tension force must decrease in order to restore static equilibrium The static frictional force does not exert a torque on the beam The torque produced by the gravitational force is equal to TG = -mgLsin(0)/2. The coefficient of static friction must equal: Hs = T/mg, where T is the magnitude %3D of the tension force.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

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)...

See similar textbooks

Similar questions

One end of a meter stick is pinned to a table, so the stick can rotate freely in a plane parallel to the tabletop. Two forces, both parallel to the tabletop, are applied to the stick in such a way that the net torque is zero. The first force has a magnitude of 2.00 N and is applied perpendicular to the length of the stick at the free end. The second force has a magnitude of 6.00 N and acts at a 38.9° angle with respect to the length of the stick. Where along the stick is the 6.00-N force applied? Express this distance with respect to the end of the stick that is pinned. d= i >
The figure shows a jet engine suspended beneath the wing of an airplane. The weight of the engine is 11900 N and acts as shown in the figure. In flight the engine produces a thrust of 68600 N that is parallel to the ground. The rotational axis in the figure is perpendicular to the plane of the paper. With respect to this axis, find the magnitude of the torque due to (a) the weight and (b) the thrust.
Two disks are free to rotate about an axis through their center. The inner disk has a radius a = 20 cm and a 60 N force is applied tangent to the rim as shown. The outer disk has radius b = 40 cm and a force of magnitude F is applied tangent to its rim. What value of F is required to give zero net torque about the center?
Please asap
Hi please help: A 80-N plank is free to rotate around point P (see figure). Find the magnitude and direction ("+" for CCW or "-" for CW) of the torque due to the weight of the plank, and the forces F1= 120N and F2 = 160N.
A solid cylindrical disk has a radius of 0.12 m. It is mounted to an axle that is perpendicular to the circular end of the disk at its center. When a 40-N force is applied tangentially to the disk, perpendicular to the radius, the disk acquires an angular acceleration of 100 rad/s2. What is the mass of the disk? kg
The distance from the fisherman's hand to the tip of the rod is L = 1.94 m. A fish is on the line, and it pulls the line with a force of F = 110 N at an angle 37.0° below the horizontal. What is the magnitude of the torque (in N · m) exerted by the fish about an axis perpendicular to the page and passing through the fisherman's hand
A force of F (2.00i+3.00j) N is applied to a rigid object that is pivoted about a fixed axis aligned along the z coordinate axis. The force is applied at a point located at r(4.00i+5.00j) m relative to the axis. Find the torque T applied to the object.
A uniform ladder 5.0 m long rests against a frictionless, vertical wall with its lower end 3.0 m from the wall. The ladder weighs 140 N. A man weighing 620 N climbs slowly up the ladder. Start by drawing a free-body diagram of the ladder. What is the actual frictional force when the man has climbed 1.0 m along the ladder? [Hint: Draw a free body diagram to determine what forces are at play. Then use the torque formula (T = Fxrx sine) to find the net torque.]
Consider a triangular plate. F₁ = 9.4 N, F₂ = 10 N, and F3 = 9.8 N. Consider the counterclockwise sense as positive. The sum of the torques (in N.m) about the vertical axis through point O, acting on the plate due to forces F1, F2, and F3, is 0.60 m 45% 0 30° 1.00 m 0.80 m B
To a light beam (of negligible mass), two antiparallel forces are applied, as shown in the figure. These forces cause a net torque equal to 7.5 Nm (and with the same direction as that caused by F2) at the left end of the beam. If F1 = 10.7 N and F2 = 5.4 N, determine the distance "l" that separates them
A wrench 0.8 meters long lies along the positive y-axis, and grips a bolt at the origin. A force is applied in the direction of (0,-1,-3) at the end of the wrench. Find the magnitude of the force in newtons needed to supply 100 newton-meters of torque to the bolt. Force: newtons