12:07 2 V A Olll all53E Moment_of_force...1. A metal rod of length 90 cm has a disc of radius 24 cm fixed rigidly at its centre, as shown. Theassembly is pivoted at its centre. Two forces, each of magnitude 30 N, are applied normal to therad at each end so as to produce a turning effect on the rod. A rope is attached to the edge ofthe disc to prevent rotation.90 cm30 N24 cmT.30 Nгореa. State the two conditions necessary for an object to be in equilibrium.b. Calculate the moment produced by the 30 N forces (also known as torque).c. Calculate the tensian T in the rope.2. A flagpole of mass 25 kg is held in a horizontal position by a cable as shown. The centre ofgravity of the flagpole is at a dista nce of 1.5 m from the fixed end.cableflagpole,30TI 1.5 mweight2.5 ma. Explain what is meant by the centre of gravity of an object.b. Write an equation to represent taking moments about the left-hand end of the flagpole. Useyour equation to find the tension 7 in the cable.C.Determine the vertical component of the force at the left-hand end of the flagpole.

Given: The length of rod, L = 90 cm The radius of disc, r = 24 cm The force acting, F = 30 N

1. A metal rod of length 90 cm has a disc of radius 24 cm fixed rigidly at its centre, as shown. The assembly is pivoted at its centre. Two forces, each of magnitude 30 N, are applied normal to the rod at each end so as to produce a turning effect on the rod. A rope is attached to the edge of the disc to prevent rotation. 90 cm 30 N 24 cm 30 N горе a. State the two conditions necessary for an object to be in equilibrium. b. Calculate the moment produced by the 30 N forces (also known as torque). c. Caleulate the tension T in the rope. 2. A flagpole of mass 25 kg is held in a horizontal position by a cable as shown. The centre of gravity of the flagpole is at a distance of 1.5 m from the fixed end. cable flagpole. 30 1.5 m weight 2.5 m a. Explain what is meant by the centre of gravity of an object. b. Write an equation to represent taking moments about the left-hand end of the flagpole. Use your equation to find the tension 7" in the cable. C. Determine the vertical component of the force at the left-hand end of the flagpole.

1. A metal rod of length 90 cm has a disc of radius 24 cm fixed rigidly at its centre, as shown. The assembly is pivoted at its centre. Two forces, each of magnitude 30 N, are applied normal to the rod at each end so as to produce a turning effect on the rod. A rope is attached to the edge of the disc to prevent rotation. 90 cm 30 N 24 cm 30 N горе a. State the two conditions necessary for an object to be in equilibrium. b. Calculate the moment produced by the 30 N forces (also known as torque). c. Caleulate the tension T in the rope. 2. A flagpole of mass 25 kg is held in a horizontal position by a cable as shown. The centre of gravity of the flagpole is at a distance of 1.5 m from the fixed end. cable flagpole. 30 1.5 m weight 2.5 m a. Explain what is meant by the centre of gravity of an object. b. Write an equation to represent taking moments about the left-hand end of the flagpole. Use your equation to find the tension 7" in the cable. C. Determine the vertical component of the force at the left-hand end of the flagpole.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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