A person lifts a 8-kg dumbbell. The combined mass and length of his hand and forearm are 4 kg and 0.4 m respectively. Determine the force exerted by his muscles 0.01 m from the pivot point? Assume that the center of gravity of the forearm is in the middle.

Q: A 5.0-m long, 12-kg uniform ladder rests against a smooth vertical wall with the bottom of the…

A: First of all we will see the forces acting So, Forces in the x direction Fx=0 is equal to the force…

Q: Consider the figure as shown. What force must be applied at point P to keep the structure in…

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Q: A uniform meterstick "weighs" 150 grams. A 100-gram weight is suspended at the 15 cm mark and…

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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…

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Q: One end of a uniform 3.80-m-long rod of weight Fg is supported by a cable at an angle of ? = 37°…

A:

Q: Look at the figure below. The horizontal beam weighs 200N, Find the tension in the cable if the…

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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 900 N man, 165 cm tall lies on a center of gravity reaction board with his feet at the left end.…

A: Given-Weight of man BW =900 NHeight of man BH =165 cmLength of reaction board L=206 cmWeight of…

Q: A 40-kg uniform ladder that is 5.0 m long is placed against a smooth wall at a height of h = 4.0 m,…

A: Can be solved by simple torque balance.

Q: Two children of mass 17 kg and 32 kg sit balanced on a seesaw with the pivot point located at the…

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Q: A light plank rests on two scales that read Fe=440 N and F,= 320 N. The scales are separated by a…

A:

Q: A uniform platform with mass M=30kg and length L=15m is placed on two supports as shown. The…

A: A mass of a uniform platform,

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

A:

Q: a uniform steel beam of mass 150;00 kg is held up by a steel cable that is connected to the beam a…

A: The free-body diagram of the beam is shown below. Here, H denotes the horizontal reaction exerted…

Q: Look at the figure below. The horizontal beam weighs 200N, Find the tension in the cable if the…

A:

Q: A P8.11 SL: dir Find the x and y coordinates of the center of gravity of a 4.00 ft by 8.00 ft…

A: consider the two rectangles, the big rectangle have area of 16 square feet ( 4.00 ft *4.00 ft) and…

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: One end of a uniform rod with weight length L = 4m, and  weight Fg is supported by a cable at an end…

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

Q: In exercise physiology studies, it is sometimes important to determine the location of a person's…

A: Consider that there are three forces at the location of the center of gravity. The balancing forces…

Q: A 6-m long ladder has a mass of 10 kg, and its center of  gravity is 2.4 m from the bottom along the…

A: Length of the ladder l=6 m, mass of ladder M=10 kg, mass of man m=70 kg, angle of friction is 15o…

Q: A uniform metal bar is 5.00 m long and has mass 0.300 kg. The bar is pivoted on a narrow support…

A: Given that:length of the bar, L=5.0 mMass of bar, M=0.300 kgAttached mass, m=0.100 kg

Q: One end of a uniform ℓ = 4.70-m-long rod of weight w is supported by a cable at an angle of ? = 37°…

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Q: A car manufacturer claims that you can drive its new vehicle across a hill with a 47° slope before…

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Q: A 5.0-m-long ladder leans against a wall at a point 4.0 m above a cement floor as shown. The ladder…

A: As per guidelines we are suppose to do only one question from multiple questions please post the…

Q: A non-uniform rod of length 1.00 m is hung horizontally, supported by strings on both ends. If the…

A: Length of the rod is 1m CG is at 0.2m from left end

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

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

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

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

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Q: A museum of modern art is displaying an irregular 426-N sculpture by hanging it from two thin…

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Q: Find the x- and y-coordinates of the center of gravity of a 4.00-ft by 8.00-ft uniform sheet of…

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Q: A diver of weight 510 N stands at the end of a diving board of length L = 4.9 m and negligible mass…

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Q: The centre of gravity of ai glit angled triangle OAB with right angle at O is: 44. (A] Gou fon) (B]…

A: Center of gravity of a right angled triangle is its centroid.

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

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Q: A uniform rod AB of weight 500 N and length 4.0 m is supported at two points P and Q as shown below.…

A: Weight of rod, w, AB=500 N Length of the rod, AB= 4 m AP=QB=0.8 m Weight of man, wm=800 N

Q: As a part of his daily workout routine, he lifts 10-kg dumbbells on each hand. His hands, and…

A: As a part of his daily workout routine, he lifts 10-kg dumbbells on each hand. His hands, and…

Q: A person carries a plank of wood 1.9 m long with one hand pushing down on it at one end with a force…

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Q: A horse weights 5000 Newtons. The distance between the front and rear hooves is L1= 1.8 meters and…

A: The torque (τ) about the rotation axis is given by the product of the perpendicular force (F) that…

Q: Two ladders, 4.00 m and 3.00 m long, are hinged at point A and tied together by a horizontal rope…

A: Hi, your question has multiple sub-parts so we will solve three sub-parts for you. for remaining…

Q: Two children of mass 21 kg and 26 kg sit balanced on a seesaw with the pivot point located at the…

A: Let r be defined as the distance from the pivot point of the small child. Then the distance of the…

Q: If a walking stick with a mass of 300 g can be balanced by placing a mass M of 150 g at a distance L…

A: We have givenMass of walking stick(m)=300 gBalanced Mass(M)=150 gDistance of balanced mass from…

Q: As a part of his daily workout routine, he lifts 10-kg dumbbells on each hand. His hands and…

A: Draw a free-body diagram of the hand.

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

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.