Two steel balls, A and B, are balanced on a beam with negligible mass as shown below. Compute for length x if the mass of ball B is 28 kg and the vertical force exerted by the pin support to the beam is 578 N. Express the answers in meter.

Q: In the figure, one end of a uniform beam of weight 390 N is hinged to a wall; the other end is…

A: Given,Weight of the beam, W = 390 Nangle, θ = 32°

Q: A uniform horizontal beam of weight 371N and length 2.85 m has two weights hanging from it. One…

A: Newton's Second Law of Motion According to Newton's Second Law of motion, the rate of change of…

Q: Two children of mass 25 kg and 32 kg sit balanced on a seesaw with the pivot point located at the…

A: Given Data:-Mass of the two children is Distance of separation between the two children is…

Q: Resting horizontally, a wheelbarrow has a total mass of 76 kg, with its center of gravity 15 cm from…

A: We will balance the torque : Fx1.4  = 76x9.8x0.15  F= 79.8 N

Q: An 80 kgkg construction worker sits down 2.0 mm from the end of a 1450 kgkg steel beam to eat his…

A: Given data- The person sits at a distance of d=2.0 m Mass of the steel beam is m1=1450 kg Mass of…

Q: A uniform pencil is held horizontal with a thumb at the end and index finger under it 3 cm from the…

A: The length of the pencil is 15 m. Its mass is 20 g Thus mass per meter is 2015=1.33 g m-1 So mass of…

Q: An individual leans forwards to pick up a box of 100 N. The weight of his upper body has a magnitude…

A:

Q: A uniform 5.0 m long 25 kg plank is to hold two people washing windows on a downtown skyscraper. The…

A:

Q: Resting horizontally, a wheelbarrow has a total mass of 65 kg, with its center of gravity 12 cm from…

A: Given: Mass of wheelbarrow: m=65 [kg] The distance of handles from the axle is: d1=1.3 [m] The…

Q: A 3 meter long beam with weight 300 N is supported by a hinge at the wall and a cable as shown. A…

A:

Q: A uniform 34.0-kg beam of length equal to 4.55 m is supported by a vertical rope located 1.20 m from…

A: Given information: Mass of the uniform beam m=34.0 kg. Length of the uniform beam l=4.55 m.…

Q: f mass M has an empty paint can of mass m hanging from one end. The meter stick and the can balance…

A: Given:-  The mass of the meter stick is M  The mass of the empty can is m hanging from one end.  The…

Q: An exhaust system for a pickup truck is shown in the figure. The weights Wh, Wm, and w, of the…

A: SOlution: Given that

Q: We have two masses balanced on a centered beam on a fulcrum. If m1 = 10 kg, and m2 = 20 kg, what…

A: Given data The first mass is: m1 = 10 kg The second mass is: m2 = 20 kg The length of the first arm…

Q: Two Boy Scouts, Bobby and Jimmy, are carrying a uniform wooden tent pole 4.20 m in length and having…

A:

Q: A uniform beam of length 10 m and mass 100 kg is supported by pylons on either end.  A 200 kg box is…

A:

Q: A father and his daughter are playing a see-saw made of a plank of length 5.1 m and of weight 118 N…

A:

Q: Two children of mass 20 kg and 30 kg sit balanced on a seesaw with the pivot point located at the…

A:

Q: Consider a rigid steel beam of length L = 11.5 m and mass mb = 405 kg resting on two supports, one…

A: Write the force balance equilibrium equation for the given system and substitute the known values.

Q: A 75-kg adult sits at one end of a 9.0 m long board. His 25-kg child sits on the other end. (a)…

A:

Q: A 90 kg construction worker stands 2.0 m from the right end of a 6.0 m long, 600 kg steel beam as…

A: First we find the tension in the cable . The forces acting are shown below: where m1 is the mass of…

Q: A meter stick weighing 20 N is balanced off its center by 30 cm using a counter weight attached at…

A: Given data: Weight of meter stick (W0) = 20 N Distance of weight of the meter stick from pivot (r0)…

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: The bones of the forearm (radius and ulna) are hinged to the humerus at the elbow. The biceps muscle…

A:

Q: A 3-meter-long beam with weight 200 N is supported by a hinge at the wall and a cable as shown. A…

A: using torque formula,

Q: The bones of the forearm (radius and ulna) are hinged to the humerus at the elbow. The biceps muscle…

A: The joint at the elbow has a turning effect when mass is placed at the hand. The biceps muscle…

Q: Two children of mass 25 kg and 26 kg sit balanced on a seesaw with the pivot point located at the…

A: Given Data:- Mass of the two children is m1=25 kg, m2=26 kg Distance of separation between the two…

Q: A 5 m long, 152 kg bridge of uniform density is supported by wires attached 1.2 m from each end. A…

A: The objective of the question is to calculate the tension in the wire closer to the right side of…

Q: Two children of mass 16 kg and 39 kg sit balanced on a seesaw with the pivot point located at the…

A:

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.