An individual is wondering how much force their biceps produce holding a weight at 60 degrees (this means we will use the T=rEsine equation). The individual's biceps insertion is 4cm from their elbow. Their forearm is 29cm long, weighs 1.87kg, and has a center of gravity 14.5cm from the elbow. They are holding a 30kg weight. euided

Q: You are on a teeter-totter with a young girl. Your mass is 105 kg and the girl's mass is 25 kg. The…

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Q: ontal boom with a weight of 165 N sticks s hang from a point 5 m from the right hand end. cable at a…

A: Given:- The weight of the  boom  Wb = 165 N  The length of the boom L = 10 m  The  weight of the…

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

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Q: 77-kg man stands on his toes by exerting an upward force through the Achilles tendon, as in the…

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Q: An athlete strengthens her leg and knee by doing "leg curls." While sitting on a bench with the leg…

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Q: A farmer is trying to bring down a couple of bags of cattle feed (mass 70kg) from the 2nd floor…

A: According to the law of conservation of energy, the expression can be written as…

Q: A 10m beam of mass of 300 kg extends over a ledge. The beam is not  held down but simply rest on the…

A: Length of beam, L = 10 m  Mass of beam , M = 300 kg  Mas of student, m = 60 kg

Q: John is performing an isometric contraction of the quadriceps to hold a 500 N weight at an angle of…

A: Given, weight W=500angle θ=450l=42.5 cmd=10mm

Q: Which of the following is the definition of power? Question 28 options:   mass X acceleration…

A: Question 27 The Valsalva manuever causes increase in rigidity of the lower torso and decrease in…

Q: A person who weighs 790 N Supports himselt on the ball of one foot The the foot on one side of the…

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Q: A 17.0-m-high and 11.0-m-long wall and its bracing under construction are shown in the figure.…

A: The expression for the Torque due to wind force will be,

Q: Why is it important to secure file cabinets to the floor, especially cabinets with heavy loads in…

A: It is dangerous to pull open the upper drawers of a fully-loaded file cabinet that is not secured to…

Q: When you lift an object by moving only your forearm, the main lifting muscle in your arm is the…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: 72. Go Review Conceptual Exam- ple 7 before starting this prob- lem. A uniform plank of length o 5.0…

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Q: A 75.0 kg weight lifter is doing arm raises using a 7.50 kg weight in her hand. Her arm pivots…

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Q: ould therefore exert a force to keep the head erect. That is why your head falls forward when you…

A: Solution: Given that  w = 55 N, r1 = 4.8 cm, and r2 = 2.9 cm.) magnitude N direction (upward,…

Q: Explain one of the reasons why pregnant women often suffer from back strain late in their pregnancy.

A: Pregnant women often suffer from back strain late in their pregnancy because they lift their child…

Q: an old rope can only safely suspend 120 kg. The old rope losses 20 kg of holding strength per minute…

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Q: If 25 kg is the maximum mass m that a person can hold in a hand when the arm is positioned with a…

A: Solution:-Given that

Q: Assuming your feet are not held down, which is more difficult: doing sit-ups with your knees bent or…

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Q: A uniform foot bridge 10 m. long weighs 1000 N .  What is the supporting force on  each end when a…

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Q: cat is balanced on the edge of a see-saw. The plank of the see-saw is 1m long, and the wedge is…

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Q: (10 Marks) If W = Wo = 20.2 N; angle of Fm with horizontal is 45 degrees (cos(45)=sin(45)=0.7…

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Q: Question 18 A bar weighs 2 N and is 5 m in length What is the weight needed (M) to balance the bar?…

A: The weight  of the bar is 2 N.The length of the bar is 5 m.The hinged point from the left side the 3…

Q: An 75-kg diver stands at the edge of a 52 kg diving board that is 5.0 meters long, which is…

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Q: To strengthen his arm and chest muscles, a 79-kg athlete 2.0 m tall is doing a series of push-ups as…

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Q: Can you break down the buttom where it comes up with 63 degrees? How can I enter this into a…

A: So we have given these values here fro, bottom of the answerr= 5mg=9.8v= 5 m/sWe have equation alsoe…

Q: In the figure to the right, spherical masses are suspended from strings of negligible mass in…

A: The scale reads what is creating a force on the scale. If the system under acceleration then the…

Q: A vaulter is holding a horizontal 3.00-kg pole, 4.50 m long. His front arm lifts straight up on the…

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Q: A horse stands with its front leg raised off the ground, as shown in the figure. figure. The left…

A: We can use the principle of static equilibrium to solve this problem. In order for the horse to be…

Q: hlete strengthens her leg and knee by doing "leg curls." While sitting on a bench with the leg…

A: Given W= 225 N, D = 44 cm=0.44 md = 5.5 cm=0.055 m

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.