A 70 kg person stands on the very end of a uniform board of length l, which is supported one-quarter of the way from one end and is balanced. What is the mass of the board? 70kg 210kg. 35kg 140kg

Q: A board sits in equilibrium. On the left end, there is a wire that supports the board from the…

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Q: A 30.0-kg child sits on one end of a long uniform beam having a mass of 20.0 kg, and a 40.0-kg child…

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

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Q: A beam of negligible mass, supported by a hinge, holds two steel balls as shown in the figure.…

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Q: A uniform board of length L and weight W is suspended between two vertical walls by ropes of length…

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Q: A worker of weight 758.6 kg stands on the end of a beam of weight 1651 N and length L= 109.2 m,…

A: Given  Mass of worker m=758.6kg Weight if beam =1651N L=109.2m X=29.2m

Q: The system in the figure below is in equilibrium. A concrete block of mass 242 kg hangs from the end…

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Q: 6. A uniform ladder with mass m = 20kg and length L = 4.0m rests against a frictionless wall in…

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Q: The system in the figure is in equilibrium. A concrete block of mass 214 kg hangs from the end of…

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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: Two students sit on a see-saw. Archie is a hulking football player with a mass of 120 kg. Clementine…

A: Given dataMass of Archie  (ma)= 120kgMass of Clementine(mc)  = 40kgFull Lenght of sea-saw  =…

Q: A 22.3 kg uniform beam is in static equilibrium. The mass of the object at the end of the beam is…

A: Required :: The magnitude of the tension force holding the beam.

Q: The uniform seesaw shown below is balanced on a fulcrum located 3.0 m from the left end. The smaller…

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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…

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

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Q: What force must be applied at point P to keep the structure shown in equilibrium? The weight of the…

A: Here the body is in static equilibrium, thus the net forces acting on the body will be equal to…

Q: 11) A horizontal, uniform bar of mass 26 kg and length 3.0 m is hinged to a wall on its left side…

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Q: A uniform plank 6.0 m long rests on two supports,2.5 m apart (Fig.P12.44).The gravitational force on…

A: The free-body diagram of the above system is shown below. Here, x is the distance traveled by a…

Q: The system in the figure is in equilibrium. A concrete block of mass 295 kg hangs from the end of…

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

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Q: 13.2 The 5.0-m-long uniform beam, shown below, is balanced at the wedge (fulcrum) located 2.0 m from…

A: length of uniform beam (L) = 5 m mass of beam = M mass of first boy = 80 kg mass of second boy = 40…

Q: ard 20 cm x 10 cm has a mass of 200 g. Masses of 50 and 80 g are attached at two corners at the ends…

A: Given values:- Dimension of uniform board,(L)=20 cm x 10 cm -----(1) Mass of uniform board,(M)=200…

Q: A uniform beam is 5.0 m long and is supported as shown in the figure. At the center of the beam, a…

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

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Q: A uniform plank has mass M = 9 kg and length L = 4.0 m. A box of mass m = 2.2 kg rests on it at a…

A: Given data: The mass of the uniform plank, M=9 kg. The length of the plank, L=4.0 m. The mass of…

Q: The system in the figure is in equilibrium. A concrete block of mass 285 kg hangs from the end of…

A: Data Given ,  Mass of the block ( M ) = 285 kg Mass of the Sturt ( m ) = 36.7 kg Angles( φ ) = 35.1°…

Q: The system in figure is in equilibrium. A mass of 225 kg hangs from the end of the uniform strut…

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Q: 6 kg 30 kg 12 1 1.25 1.5/ 1.75 0.25 0.5 0.75 0.75 0.5 0.25 Meters 1 1.75 1.5 1.25 Meters Check 15 kg

A: Torque is the rotational analog of linear force. The torque is given by the cross product of the…

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: The system in the figure is in equilibrium. A concrete block of mass 156 kg hangs from the end of…

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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 uniform, 0.20kN board of length L has two objects hanging from it: 300N at exactly L/3 from one…

A: Image-1

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

A: Given data The weight of the beam is W = 340 N The angle applied force is θ = 44°

Q: A see-saw consists of a uniform board with mass 43.6kg and length l = 2.01m. It supports two friends…

A: For the see-saw to balance, the torques due to the forces acting on either sides should balance each…

Q: The system in the figure is in equilibrium. A concrete block of mass 222 kg hangs from the end of…

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Q: A painter (mass 72 kg) is walking along a trestle, consisting of a uniform plank (mass 28.5 kg,…

A: Given, Mass of painter, mp=72 kg, mass of plank, mplank=28.5 kg, length of plank, lplank=6 m, Mass…

Q: A 5.0 kg cat and a 2.0 kg bowl of tuna fish are at opposite ends of a 4.0 m long seesaw. How far to…

A: In order to keep the seesaw in balance, the moment about the pivot point must be equal. Let the 4 Kg…

Q: A uniform meter stick has a 45.0 g mass placed at the 20 cm mark as shown in the figure. If a pivot…

A: One end of the meter scale is at x=0 cm and the other end is at x=100 cm. The equation for the…

Q: A uniform meter stick has a 45.0 g mass placed at the 20 cm mark. If a pivot is placed at the 42.5…

A: Given: The mass of the object is 45 g. The length of the stick is 100 cm.

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 bamboo pole 6 m long weighs 300 N. It can be balanced at a point 2.5 m from the thicker end. If it…

A: The free-body diagram of the given problem is as follows. The centre of mass is at a distance 2.5m…

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

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Q: 45 kg.** X = ? +0.4 m -0.5 m 30 kg 40 kg The 3m long uniform plank is supported by a fulcrum at the…

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Q: A 32.0 kg child sits on one end of a long uniform beam having a mass of 18.0 kg, and a 40.0 kg child…

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Q: The system in the figure is in equilibrium. A concrete block of mass 274 kg hangs from the end of…

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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.