A uniform, 20-kg, 8.0-m-long, wooden plank that is parallel to level ground is supported by two pivots: one pivot is at the extreme left end of the plank, and the other pivot is 3.0 m inward from the extreme right end of the plank. A 80-kg construction worker, who is initally standing on the extreme left end of the plank, begins to walk to the right. How far from the right end of the plank will the worker be located when the plank begins to tip?

Q: Problem 7:  Two children of mass 17 kg and 32 kg sit balanced on a seesaw with the pivot point…

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Q: How far horizontally from that cable is the center of mass of the system

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Q: A 4 m long horizontal uniform beam of mass 24 kg is supported by a wire as shown in the figure. The…

A: Given:-  The length of the Beam is L = 4 m. The mass of the beam is M = 24 kg. The wire makes an…

Q: Three children are trying to balance on a seesaw, which consists of a fulcrum rock, acting as a…

A: Given data :  Mass of children A (mA) = 45 kg  Mass of children B (mB) = 35 kg  Mass of children C…

Q: ladder

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Q: A 12m long post is bolted to the wall on its left end. It's right end is held horizontal by a wire…

A: GivenLength of post L = 12 mMass of post m = 13 kgAngle Ѳ =35

Q: A 20 kg uniform ladder 2.5 meters long rests against a smooth wall at an angle of 53° with the…

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Q: A beam rests on a fulcrum, 1.5 meters from one end. A weight of 463 kg is suspended from this end…

A: Given data as per question weight  =  463kg suspended weight =  2398kg

Q: A tightrope walker is walking between two buildings holding a pole with length L = 17.5 m, and mass…

A: Given that,  Length of the pole (L)= 17.5 m Mass of pole (mp) = 17.5 kg Distance between the hands…

Q: house painter is standing on a uniform, horizontal platform that is held in equilibrium by two…

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Q: You sit 12m away from the center/ pivot of a Seesaw and your mass is 70 kg. Another person with mass…

A: The free-body diagram of the see-saw is shown below.

Q: As shown in the figure, a beam is supported by two pillars separated by a distance ℓ = 6.3 m. The…

A: Analyze the diagram of the question with all acting forces is given below, Here, N1, N2 denotes the…

Q: A tightrope walker is walking between two buildings holding a pole with length ?=14.5 m and mass ?p…

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Q: e bones of the forearm about 2.15 cm beyond the joint. Assume the forearm has a mass of 2.45 kg and…

A: Given values:- Biceps muscle connects to the bones of the forearm,(r0)=2.15 cm=0.0215 m -----(1)…

Q: Even when the head is held erect, as in the figure below, its center of mass is not directly over…

A: As there are two force acting perpendicular to a fixed point, these forces generate a torque around…

Q: A bench is made by placing a 3.9 meter long plank on two legs, each 0.36 meters from one of the…

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

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Q: A 198 kg, 5 m long beam sits on top of two posts.  A 3 kg pail sits 0.7 m from the left edge of the…

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Q: Suppose a 900-kg car is on the bridge in Figure shown with its center of mass halfway between the…

A: Here, mass of the bridge =2500kg Net torque is zero at the left hinge. Torque due to the weight of…

Q: The patellar tendon attaches to the tibia at the tibial tuberosity at a perpendicular distance of…

A: According to the condition of equilibrium, the total torque or moment about the pivot point is zero.…

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

A: Given: The mass of the student is 45 kg. The length of the plank is 3 m. The free-body diagram is…

Q: A 63kg beam extends horizontially from the side of a wall.  A 13kg box hangs from the end of the…

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Q: Two people, let’s call them person A and person B, carry a uniform board of length 6 meters and…

A: DataLength, L = 6mWeight, W = 150NDistance of A from end 1, a=1mDistance of B from end 2, b=2m…

Q: The 585-kg uniform I-beam supports the load shown. Determine the reactions at the supports. -6.1 m-…

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Q: Big Sister and Little Brother are balanced on a see-saw. Big Sister sits a distance of 1.13m away…

A: Please see the attached image for the solution.   If there are queries or if the image is not…

Q: A 40.0 kg boy sits on a seesaw 3.0 m away from the pivot point. The mass of the wooden plank is 5.0…

A: Given: The mass of the boy is 40.0 kg. The distance is 3.0 m from the pivot point. The mass of the…

Q: Problem 7: Three children are trying to balance on a seesaw that is 3.2 m long. Two playmates are…

A: Given:mass of A, ma = 45 kgmass of B, mb = 35 kgmass of C, mc  = 25 kglength of the 3.2 mpivot is at…

Q: A uniform, 20-kg, 8.0-m-long, wooden plank that is parallel to level ground is supported by two…

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Q: A meter stick is pivoted at the 0.50-m line. A 4.0-kg object is hung 0.20m to the right of the 0.50…

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Q: A 94.5 kg window-washer is working on a uniform plank of 132 kg and length 16.3 m is supported at…

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Q: Problem 1: A 5.7-m ladder rests against a wall as shown. The ladder has a mass of 26.3 kg. A 58.3-kg…

A: Consider the following diagram which represents all the forces involved. Let Fw be the normal…

Q: (e) Calculate d₂. Enter to 3 significant figures d₂= 0.40 X√

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Q: A uniform 1.0-N meter stick is suspended horizontally at the middle. A 2.0-N weight is suspended…

A: length of meter stick is 1m  Let w1 = 2.0 N r1 = 10 cm from the stick let weight of 500 grams (0.5…

Q: A person carries a plank of wood 2.00 m long with one hand pushing it down at one end with a force…

A: Solution:                                             From our free-body diagram we conclude that…

Q: Problem 3: A large airplane typically has three sets of wheels: one at the front and two farther…

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Q: Mark is trying to rescue Mary from a castle by climbing a uniform ladder that is 5 m long and weighs…

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Q: The 465-kg uniform I-beam supports the load shown. Determine the reactions at the supports. -5.9 m-…

A: If a system is in equilibrium then  1. Net force on the system = 0 2. Net torque on the system = 0

Q: A 1.50x103 kg car, whose front is facing to the right (towards +x-axis) and whose engine is turned…

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Q: Problem 1: A 5.7-m ladder rests against a wall as shown. The ladder has a mass of 26.3 kg. A 58.3-kg…

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

A:

Center of Gravity of a system

The centre of gravity is a property that is based on the geometry of a rigid body or any particle. It is described as an equilibrium point or a hypothetical location where the total weight of the body is concentrated.