As an oil well is drilled, each new section of drill pipe supports its own weight and that of the pipe and drill bit beneath it. Calculate the stretch in a new 6.00 m length of steel pipe that supports 3.00 km of pipe having a mass of 20.0 kg/m and a 100-kg drill bit. The pipe is equivalent in stiffness to a solid cylinder 5.00 cm in diameter.

Q: How much compression acts on the hip during two-legged standing, given that the joint supports 250 N…

A: Looking at the components Rcosα=Fmcos70=600cos70Rsinα=mg+Fmsin70=250+600sin70

Q: Using the conditions of equilibrium, the force applied by the forearm in order to lift a dumbbell…

A:

Q: A 23.0 m tall hollow aluminum flagpole is equivalent in strength to a solid cylinder of aluminum…

A: The elastic modulus of the aluminium is

Q: A farmer making grape juice fills a glass bottle to the brim and caps it tightly. The juice expands…

A:

Q: The board sandwiched between two other boards in Figure P4.77 weighs 95.5 N. If the coefficient of…

A:

Q: A uniform bar whose mass and length are 55.0 kg and 8.00 m, respectively is supported by two light…

A: Given Data : The mass of the bar is given as mb = 55 Kg. The length of the bar is given as L = 8 m.…

Q: The drawing shows a wire tooth brace used by orthodontists. The topmost tooth is protruding…

A:

Q: he positive direccion are indicated in the figure. The 880kg concrete bucket is in static…

A: The 880kg concrete bucket is in static equilibrium and the force in cable BC is 8000 N.

Q: A uniform awning of mass 30 kg is attached to a building at one end and supported by a massless…

A:

Q: A 18.0 m tall hollow aluminum flagpole is equivalent in strength to a solid cylinder of aluminum…

A:

Q: a rod of mass m is hinged to a building at its lower end, while its upper end is held in place by a…

A:

Q: A uniform 50-kg scaffold of length 7.0 m is supported by two light cables, as shown below. A 64-kg…

A:

Q: As an oil well is drilled, each new section of drill pipe support its oun weight crel that of the…

A: Given, L∘=6.0 mL∘=length of the pipeγ=1.6×1010 N/m2

Q: A vertebra is subjected to a shearing force of 500.0 N. Find the shear deformation, taking the…

A:

Q: A farmer making grape juice fills a glass bottle to the brim and caps it tightly. The juice expands…

A: The expression for the increase in the volume, ∆VV0=1BFA

Q: A mine elevator is supported by a single steel cable 2.5 cm in diameter. The total mass of the…

A: The expression for the elastic module,

Q: A 3-meter rod with a weight of 1000 N is suspended by two cables and has a large box(3500N in weight…

A: Consider the free body diagram below.

Q: A bucker of mass M is lowered from above using a rope subjected to tension of modulus T. The…

A:

Q: 2.30 m long and has a mass m = 15.0 kg. It leans at rest against a smooth wall making an angle 0 =…

A:

Q: 25. Philip stands at the end of the diving board, 2m from its point of attachment. If the board is 1…

A: This problem can be solved by using formula of shear modulus.  And in the given scenario the only…

Q: A 20.0-m tall hollow aluminum flagpole is equivalent in stiffness to a solid cylinder 4.00 cm in…

A: The expression for the required distance is,

Q: A uniform 37.0 kg scaffold of length 5.8 m is supported by two light cables, as shown below. A 78.0…

A: Given M ass of scaffold = 37.0 kg  scaffold  length of scaffold =  5.8 m  Mass of a painter = 78.0…

Q: 17 A snow load transfers the forces shown to the upper joints of a Pratt roof truss. Neglect any…

A:

Q: the grou Fig. 6.59 shows a uniform boom of mass m = supported by a cable perpendicular to the boom.…

A: The torque acting on a body is the force applied at a distance l from it's pivot point , required to…

Q: For the conditions of the equilibrium of the body (i.e. the rigid body), only the external force…

A: Given : internal forces cancel each other, So Finternal = 0 Body in equilibrium.

Q: a ladder 4m long is leaning against a frictionless wall with its lower end 1.6m away from the wall.…

A:

Q: A 5.50kg block starts from rest and slides on a 30°wedge, which is supported by a horizontal…

A:

Q: Two 20 kg blocks are connected by a 2.0-m-long, 5.0-mm-diameter rope.  Young's modulus for this rope…

A: Given data: Mass m1=m2=20 kg Length of the rope l=20m Diameter of the rope d=5.0mm Young's modulus…

Q: You have been tasked with retrieving a crate from a 4-m long beam that is suspended by two cables,…

A: Given Data: The length of the beam is: l=4 m The distance of the person from the left end of the…

Q: A diving board 3.00 m long is supported at a point 1.00 m fromthe end, and a diver weighing 500 N…

A:

Q: A 7-m long beam of negligible mass is hanged horizontally and is supported at each end by vertical…

A:

Q: The two structural members, one of which is in tension and the other in compression, exert the…

A:

Q: A 90-m wire is suspended between two points at the same elevation that are 60 m apart. Knowing that…

A: (a) Draw the free-body diagram for the half span.

Q: A uniform plank of length 2.00 m and mass 29.0 kg is supported by three ropes, as indicated by the…

A: Given: Length of plank, L=2 m Mass, m=29 kg Weight of person, W2=685 N d=0.500 m from the left end…

Q: A 20.0-kg box with a height of 80.0 cm and a width of 30.0 cm has a handle on the side that is 50.0…

A:

Q: A 20.0 m tall hollow aluminum flagpole is equivalent in strength to a solid cylinder of aluminum…

A:

Q: A uniform 37.0 kg scaffold of length 6.2 m is supported by two light cables, as shown below. An 82.0…

A:

Q: 2 kN F 3 kN 3 kN G E Az = 0 A 30° 60 60° 60% 60° 30 -3 m 3 m -3 m- Ay = 4 kN D, = 4 kN

A: In this question we have to determine the force in members AG and FB of the roof truss as shown in…

Q: A man is walking over a dome of 10 m radius. How far he can descend from the top of thedome without…

A: Let the Man descend to a height of h’ from the top. As shown in the figure:

Q: The uniform crate has a weight of 200 N. If a force P = 80 N is applied to the crate, determine if…

A: Applied force (P) = 80 N angle = 30 degree μs = 0.25Normal force = mg + Psin(theta) = 200 +…

Q: The hanging mobile pictured above consists of two masses, m1 and m2, suspended from a uniform 10 cm…

A: Given Mass m1 = 0.02 kg Mass mr = 0.01 kg Length of the rod L = 10 cm = 0.10 m

Q: Neglecting the weight of the bracket, and if s = 6.4 cm, S1 the horizontal force component exerted…

A:

Q: The two structural members, one of which is in tension and the other in compression, exert the…

A: We have two forces F1=4.2 kN which makes an angle of 63o with the +x axis directed inwards and…

Q: In a skyscraper, an elevator is suspended from three equal, parallel 300-m-long steel cables, each…

A: Young's modulus of steel = 2 * 1011 N/m2Length of each cable = 300 m Diameter of each cable = 1 cm…

Q: A uniform 37.0 kg scaffold of length 6.4 m is supported by two light cables, as shown below. An 82.0…

A: r=Distance between left cable and right cable=6.4 mr1=Distance between left cable and man=1…

Q: 2 m 45 2 m 2 m 2 m F F F

A:

Mechanical Properties of Solids

There are three types of matter- solid, liquid and gas. Out of them, solids have a rigid shaped and size. The intermolecular forces of attractions in solids are greatest. Mechanical properties are the physical properties of a material which it shows, when it is provided with certain amount of force or load. These properties are to be kept in mind for various purposes. When a force is applied to an object, the object may or may not get deformed depending upon its elastic property. But every time the object develops a restoring force against the force applied. This is commonly known as stress. If the object changes its dimensions due to the force applied it develops strain ( which is the ratio of change in dimension to the original dimension).