Exercise 30: A uniform and homogenous rod (R) of length L=100cm and mass m=lkg is free to rotate about a fixed axis passing through its extremity O. The rod is held in equilibrium by connecting its other extremity A to a point B in a vertical wall by means of a light in- extensible string that makes an angle 0 = 60° with respect to the wall. A block (S) of mass M=1kg is connected to the rod at its extremity A by means of a light in-extensible string. Take g=10m/s. 1. Name and represent all the forces acting on the rod. 2. Determine T the magnitude of the tension force T in the string AB. 3. Determine the magnitude of the reaction force Rexerted by the wall on (R). 30 120° (S)

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Exercise 30:
A uniform and homogenous rod (R) of length L=100cm and mass
m=lkg is free to rotate about a fixed axis passing through its
extremity O. The rod is held in equilibrium by connecting its other
extremity A to a point B in a vertical wall by means of a light in-
extensible string that makes an angle 0 = 60° with respect to the wall.
A block (S) of mass M=lkg is connected to the rod at its extremity A
by means of a light in-extensible string.
Take g=10m/s.
1. Name and represent all the forces acting on the rod.
2. Determine T the magnitude of the tension force T in the string AB.
3. Determine the magnitude of the reaction force R exerted by the
wall on (R).
30
120°
(R)
(S)
Transcribed Image Text:Exercise 30: A uniform and homogenous rod (R) of length L=100cm and mass m=lkg is free to rotate about a fixed axis passing through its extremity O. The rod is held in equilibrium by connecting its other extremity A to a point B in a vertical wall by means of a light in- extensible string that makes an angle 0 = 60° with respect to the wall. A block (S) of mass M=lkg is connected to the rod at its extremity A by means of a light in-extensible string. Take g=10m/s. 1. Name and represent all the forces acting on the rod. 2. Determine T the magnitude of the tension force T in the string AB. 3. Determine the magnitude of the reaction force R exerted by the wall on (R). 30 120° (R) (S)
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