(I) A sign (mass 1700 kg) hangs from the bottom end of avertical steel girder with a cross-sectional area of 0.012 m2(a) What is the stress within the girder? (b) What is thestrain on the girder? (c) If the girder is 9.50 m long, howmuch is it lengthened? (Ignore the mass of the girder itself.)

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A: Weight of the sign, W = mg = 415 N Angle of cable with wall = 50o

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Q: shaft of bone 1.2 m long. If the strain is 1.3x (10) ^(-4) when the leg supports his weight, by how…

A: The amount of length led shortened is   =strain ×length    =1.3×10^(-4)×(1.2m)=1.56×10^(-4) m

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A: The diagram is given  To find = upward component of velocity of velocity A in terms of B ,l,θ

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Q: To stretch a relaxed biceps muscle 2.5 cm requires a force of 25N. Find the Young’s modulus for the…

A: Force, F = 25 N  stretched length, l = 2.5 cm  length, L = 0.24 m  area, A = 47 cm2

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A: The expression for the Young’s modulus is,

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Q: A metal wire 75.0 cm long and 0.130 cm in diameter stretches 0.0350 cm when a load of 8.00 kg is…

A: Given: Wire length, L=75 cm=0.75 m Wire diameter, D=0.13 cm=0.0013 m Elongation, ∆L=0.035 cm=0.00035…

Q: A 22.0 m tall hollow aluminum flagpole is equivalent in strength to a solid cylinder of aluminum…

A: The length of the aluminum flagpole, L0=22.0 m The diameter of the aluminum flagpole, D=4.00 cm =…

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Q: Example 10.22 Compare the loads required to produce equal depressions for two beams made of the same…

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Q: a vertical uniform beam of length Lthat is hinged at its lower end.A horizontal force F is applied…

A: Here we use Newton's second law, Along the x-axis, we get as below. Fa-T Cos ϴ - Fh = 0 Now using…

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A: Sigma= 80179 N/m2

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A: Given that - Five bolt connection Applied load(p)= 4700lb Averge shear stress in the bolt must be…

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A: SOlution: given that W = 0.8 kN A = 8 cm2 L = 43 cm

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Q: If a compressive force of 3.6x104 N is exerted on the end of a 22cm long bone of cross-sectional…

A: Write the given values and the modulus of elasticity of the bone. F=3.6×104 NL=22 cm=0.22 mA=3.6…

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Q: 41-50. The homogeneous bar is supported by a smooth pin at Cand a cable that runs from A to B around…

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A: Area of the hollow cylinder is find by the A=πRO2-RI2

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A: Free body diagram of system is as follows:

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Q: has EX. A steel rod 2 m area ofo.3 cum?. The rod is now end from hong a cross-sectional hung by one…

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Rotational Equilibrium And Rotational Dynamics

In physics, the state of balance between the forces and the dynamics of motion is called the equilibrium state. The balance between various forces acting on a system in a rotational motion is called rotational equilibrium or rotational dynamics. 

Equilibrium of Forces

The tension created on one body during push or pull is known as force.