A 10-m beam of mass 280 kg extends over a ledge. The beam is not attached, but simply rests on the surface. A 76-kg student intends to position the beam so that he can walk to the end of it. How far from the edge of the ledge can the beam extend?

Q: Bob and Steve are building a see-saw and want it to balance when they both sit on the ends, but Bob…

A: Given : Weight of Bob is twice as Steve  Find : Where would the fulcrum have to be positioned for…

Q: An 800-N billboard worker stands on a 4.0-m scaffold weighing 500 N and supported by vertical ropes…

A:

Q: 2.15 A large wood beam weighing 800 N is supported by two posts as shown. If an unthinking man…

A: The Diagram for the given Question is:

Q: 3. A 15-kg uniform beam is 3.0 m long and is pivoted 1.0 m from the left end. A 35 kg child sits on…

A: Given mass of the uniform is M = 15 kg (center of mass at X = 0.5 m right to pivot) mass of the…

Q: A uniform beam of length L and mass M has its lower end pivoted at P on the floor, making an angle θ…

A: Given that: To determine: a) Write an expression for the y-component Py of the force exerted by the…

Q: Two children of mass 15 kg and 40 kg sit balanced on a seesaw with the pivot point located at the…

A: Given data: The mass of bigger child, m1=40 kg. The mass of smaller child, m2=15 kg. The distance…

Q: A 5.4 kgkg cat and a 2.5 kgkg bowl of tuna fish are at opposite ends of the 4.0-mm-long seesaw. How…

A: Given: m1= 5.4 kg  m3 = 2.5 kg  L = 4m  m2 = 3.8 kg

Q: A uniform rod of length 100cm and mass 0.4 kg is placed on a fulcrum at a distance of 80cm from the…

A: Draw the free-body diagram of the rod.

Q: A 6.00 m uniform beam of mass 17.0 kg is hinged to a vertical wall. The beam is kept in a stationary…

A: Given: The length of the beam is 6.00 m. The mass of the beam is 17.0 m. The length of the cable is…

Q: A uniform 35.0-kg beam of length l= 5.00m is supported by a vertical rope located d= 1.20m from its…

A: Mass of beam=35Kg length of beam,l=5m

Q: A uniform log of length L is incline 30 ͦ from the horizontal when supported by a frictionless rock…

A:

Q: A diving board of length 4.00 m is supported at a point 1.50 m from the end, and a diver weighing…

A:

Q: The plant in the picture has mass of 22 kg, and is hanging at a distance of 1.9 meters from the…

A: Torque on a body is given by the cross product of force acting on it and the distance between the…

Q: A uniform steel bar of length 10 m is supported at point A and B using two cables as shown in the…

A:

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

A:

Q: A person is standing on a section of uniform scaffolding as shown in the figure. The section of…

A:

Q: A large wood beam weighing 800 N is supported by two posts as shown. If an unthinking man weighing…

A: Given, large wood beam weighs 800 N supported by two rods Man weighing 700 N walks from A to right…

Q: 3.4 kg mass is plac A horizontal 15 kg balance beam is 4.8 m in length and has its center of mass at…

A: Given: Mass of horizontal balance M = 15 kg Mass of an object m = 3.4 kg. Distance d = 1.3 m.

Q: Two children of mass 15 kg and 35 kg sit balanced on a seesaw with the pivot point located at the…

A:

Q: A woman who weighs 500 N stands on a 5.2-m-long board that weighs 94 N. The board is supported at…

A: Given information: Here, Ww and Wb are the weight of the woman and the board respectively, l is the…

Q: A uniform beam of length 1.0 m and mass 10 kg is attached to a wall by a cable, as shown. The beam…

A: Rotational Equilibrium: Here, the torque due to the weight of the beam about the pivot at the point…

Q: An office wants to hang a sign, mass 90 kg, which is supported by a uniform 490 N beam as shown in…

A:

Q: Two children of mass 16 kg and 37 kg sit balanced on a seesaw with the pivot point located at the…

A: Let the distance of the smaller child from the pivot point be denoted as x. The corresponding…

Q: he 3 m long uniform plank is supported by a fulcrum at the midpoint. Where should a 45 kg student…

A: Given: The length of the uniform plank is 3 m. The mass of the student is 45 kg.

Q: A uniform horizontal beam with a length of 8 m and a weight of 200 N is attached to a wall by a pin…

A: Given, Length of beam, L=8 m Person's separation from wall, l=2 m Angle b/w beam & cable, θ=53∘…

Q: The 3m long uniform plank is supported by a fulcrum at the midpoint. Where a 45kg student should…

A: Mass of person1 : m1 = 30 kg Mass of person2 : m2 = 40 kg Mass of person3 : m3 = 45 kg  Position of…

Q: A uniform beam of weight 19 N and length 6.0 m is mounted by a small hinge on a wall at it left end.…

A:

Q: A 6.00 m uniform beam of mass 17.0 kg is hinged to a vertical wall. The beam is kept in a stationary…

A:

Q: Two children hold opposite ends of a lightweight, 1.8-m-long horizontal pole with a water bucket…

A:

Q: The following uniform beams are pivoted about their center of mass. Which of them is in static…

A:

Q: An irregularly shaped object 10 m long is placed with each end on a scale. If the scale on the right…

A: This is a question from classical mechanics. In this problem, we have to use the concept of the…

Q: A hungry bear weighing 700 N walks out on a beam in an attempt to retrieve a basket of goodies…

A:

Q: The drawing shows a uniform horizontal beam attached to a vertical wall by a frictionless hinge and…

A: The beam is at rest and so the sum of the torques must equal zero. But we can choose about which…

Q: An 80 kg construction worker sits down 2.0 m from the end of a 1450 kg steel beam to eat his lunch,…

A:

Q: A 2.4 m ladder rests on a vertical wall as shown in the figure. The ladder has 7 rungs and the rungs…

A: Solution:

Q: The drawing shows a uniform horizontal beam attached to a vertical wall by a frictionless hinge and…

A: W= 342N  Angle 35°

Q: A uniform 150-q beam is 1 meter long. If the fulcrum is placed 20 cm from the left end of the beam,…

A: Solution:

Q: A uniform 35.0-kg beam of length ℓ = 5.00 m is supported by a vertical rope located d = 1.20 m from…

A: It is given that,

Q: A 700 N bear is standing on a metal plank supported by the cable shown in the figure. At the end of…

A:

Q: A uniform rod of weight 5 N and length 1 m is pivoted at a point 20 cm from one of its ends. A…

A: Write the expression for moment.

Q: The cantilevered W530x 150 beam shown is subjected to a 8.3-kN force F applied by means of a welded…

A: The magnitude of force is 8.3 kN

Q: An 8 m ladder, weighing W 360 N leans against a smooth vertical wall, meaning there is no friction…

A: Weight of the ladder = WL=360 N Weight of the fire fighter = Wf=900 N Length of the ladder = L = 8 m…

Q: Two children are trying to balance on a seesaw, which includes a fulcrum and a board that is 10m…

A:

Q: A large wood beam weighing 800 N is supported by 2m two posts as shown. If an unthinking man…

A: 2.15) Let the distance of man from point A is x. Apply the equilibrium condition of the moment about…

Q: Rylie, whose mass is 73.3 kg, is standing on the edge of a steel beam that overhangs a construction…

A:

Q: A lady weighing 450 N sits on one end of a seesaw that is 3 m long and is pivoted 1.3 m from the…

A:

Q: A uniform plank of length 5.35 m and mass 26.9 kg rests horizontally across two horizontal bars of a…

A: suppose, the right scaffold part is free to walk by the painter.the distance from the center of mass…

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.