Two ladders, 4.00 m and 3.00 m long, are hinged at point A and tied together by a horizontal rope 0.90 m above the floor. The ladders weigh 480 N and 360 N, respectively, and the center of gravity of each is at its center. Assume that the floor is freshly waxed and frictionless. (a) Find the upward force at the bottom of each ladder. (b) Find the tension in the rope. (c) Find the magnitude of the force one ladder exerts on the other at point A. (d) If an 800-N painter stands at point A, find the tension in the horizontal rope.

Q: A deli owner creates a lunch special display board by taking a uniform board which has a weight of…

A:

Q: A ladder of length L is leaning on a frictionless wall at 53 degrees to horizontal. The ladder is of…

A:

Q: The system shown is in equilibrium. A mass of 122 kg hangs from the end of a strut, which is…

A: Given:- A concrete block of mass m = 12 kg hangs from the end of a strut  The ground and makes an…

Q: The system in the figure is in equilibrium. A concrete block of mass 183 kg hangs from the end of…

A:

Q: In the figure, suppose the length L of the uniform bar is 3.3 m and its weight is 250 N. Also, let…

A: (a) The net torque acting on the bar at point A is,…

Q: The ladder and the person weigh 30N and 180N, respectively. The center of mass of the 12-m ladder is…

A:

Q: The system in the figure is in equilibrium. A concrete block of mass 327 kg hangs from the end of…

A:

Q: In the figure, suppose the length L of the uniform bar is 3.3 m and its weight is 200 N. Also, let…

A: Given  L = 3.3 m  W = 200N  W1(W of block) = 280 N  Angle = 43°  Maximum tension = T = 410 N

Q: A uniform beam is 5.00 m long and has a mass of 53.0 kg. The beam is supported in a horizontal…

A: Given:-

Q: The system in the figure is in equilibrium. A concrete block of mass 221 kg hangs from the end of…

A: (a) The angle between strut and the cable is  α=θ-ϕ Substitute the values  α=55.7°-39.4°α=16.3° The…

Q: In the figure, one end of a uniform beam of weight 170 N is hinged to a wall; the other end is…

A:

Q: A 20-m ladder weighing 100 N rests against a vertical wall at a point 16 m above the ground. The…

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Q: The system in the figure is in equilibrium. A concrete block of mass 192 kg hangs from the end of…

A: Tension Tension is a force through the length of a media , particularly  force convey to a…

Q: The system in the figure is in equilibrium. A concrete block of mass 205 kg hangs from the end of…

A:

Q: A uniform 34.0-kg beam of length e = 5.15 m is supported by a vertical rope located d- 1.20 m from…

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Q: he wall, and the coefficient of static friction between the ladder and the ground is µs = 0.285. The…

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Q: A non-uniform rod is horizontal, and has one end at x = 0 and the other end at x = 20 m. In order to…

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Q: Problem 1: The uniform thin frame ABC is supported by cable DBE that passes through a frictionless…

A: By neglecting the mass of the cable, Let B is the origin and mass of two ball and socket joints at A…

Q: L=1.0 m long mb=12 kg uniform bar is hinged on the left end and pulled at the right end by a cable.…

A: Given data  mb = 12 kg  ms = 20 kg  d = 0.18 m  L = 1.0 m   Theta = 24 degree

Q: A deli owner creates a lunch special display board by taking a uniform board which has a weight of…

A:

Q: In the figure, a uniform beam with a weight of 51.7 N and a length of 3.12 m is hinged at its lower…

A:

Q: The system in the figure is in equilibrium. A concrete block of mass 231 kg hangs from the end of…

A:

Q: In the figure, one end of a uniform beam of weight 220 N is hinged to a wall; the other end is…

A: Given that A uniform beam of weight (W) =220N L is the length of the wire  The wire makes an angle…

Q: In the figure, one end of a uniform beam of weight 110 N is hinged to a wall; the other end is…

A:

Q: In the figure, a thin horizontal bar AB of negligible weight and length L = 2.3 m is hinged to a…

A: given that weight of block = 280 N Distance from one end x = 1.66 m length of rod = 2.30 m let…

Q: In the figure, one end of a uniform beam of weight 220 N is hinged to a wall; the other end is…

A:

Q: uniform metal bar that has mass 4.00 kg and length 2.00 m is attached to a wall at one end by a…

A: uniform metal bar that has mass 4.00 kg and length 2.00 m is attached to a wall at one end by a…

Q: A uniform beam of mass m = 140.0 kg and length L = 2.40 m is supported by two columns at each end.…

A: Given data The mass of the uniform beam is m = 140 kg The length of the beam is L = 2.40 m The mass…

Q: The system in the figure is in equilibrium. A concrete block of mass 275 kg hangs from the end of…

A:

Q: The system in the figure is in equilibrium. A concrete block of mass 185 kg hangs from the end of…

A:

Q: One end of a uniform = 4.30-m-long rod of weight w is supported by a cable at an angle of 837° with…

A:

Q: A rod AB weighing 25 kN is supported by a pin at A and a cable BD. The center of gravity of the rod…

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Q: The system in the figure is in equilibrium. A concrete block of mass 272 kg hangs from the end of…

A:

Q: A 75.0 kg passenger on a cruise ship leans forward into a strong horizontal headwind. When her…

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Q: A person pushing a horizontal, uniformly loaded, 29.75 kg wheelbarrow of length L is attempting to…

A: The mass of the wheelbarrow is 29.75 kg. The height is 0.390R, where R is the radius of the wheel.…

Q: The system in the figure is in equilibrium. A concrete block of mass 152 kg hangs from the end of…

A: a) Draw the free-body diagram of the strut.

Q: The system in the figure is in equilibrium. A concrete block of mass 333 kg hangs from the end of…

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Q: A uniform L = 6.71 m long horizontal beam that weighs WB= 363N is attached to a wall by a pin…

A:

Q: A circular plate with radius r = 0.941 m lies next to a rectangular plate with base br = 0.783 m and…

A: Given data: Radius of circle r=0.941 m. Base of rectangle br=0.783 m. Height of rectangle hr=0.898…

Q: A 5.0-m long, 15-kg uniform ladder rests against a smooth vertical wall with the bottom of the…

A:

Q: The system in the figure is in equilibrium. A concrete block of mass 333 kg hangs from the end of…

A:

Q: A 12.0 kg monkey climbs up a 135 N uniform ladder of length L leaning against the wall at an angle…

A: Given:  Mass of monkey, m = 12 kg weight of ladder, W = 135 N angle of ladder with wall, θ = 250…

Q: Two men are carrying a ladder of length l by supporting it at its ends. The ladder is horizontal,…

A:

Q: A person’s weight is 438 N is standing on a level floor and have a center of gravity that is 1.28 m…

A: Given data: Weight of the person, Wp=438 N Center of gravity of person, Xp=1.28 m Weight of his…

Q: Two friends are carrying a 200 kg crate up a flight of stairs. The crate is 1.25 m long and 0.500 m…

A: Force due to weight is in vertical downward direction.weight of body of mass m is, W=mgFor the…

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).