In exercise physiology studies, it is sometimes important to determine the location of a person's center of gravity. This canbe done with the arrangement shown in the figure below.2.00 mA light plank rests on two scales that read Fg1= 410 N and F92= 280 N. The scales are separated by a distance of 2.00 m.How far from the woman's feet is her center of gravity?m.

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Answered: In exercise physiology studies, it is…

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter9: Statics And Torque

Section: Chapter Questions

Problem 9PE: A person carries a plank of wood 2.00 m long with one hand pushing down on it at one end with a...

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A person carries a plank of wood 2.00 m long with one hand pushing down on it at one end with a force F1 and the other hand holding it up at .500 m from the end of the plank with force F2. If the plank has a mass of 20.0 kg and its center of gravity is at the middle of the plank, what are the magnitudes of the forces F1 and F2?
The forearm shown below is positioned at an angle with respect to the upper arm , and a 5.0- kg mass is held in the hand. The total mass of the forearm and hand is 3.0 kg, and their center of mass is 15.0 cm from the elbow. (a) What is the magnitude of the force that the biceps muscle exerts on the forearm for =60 ? (b) What is the magnitude of the force on the elbow joint for the same angle? (c) How do these forces depend on the angle ?
In exercise physiology studies, it is sometimes important to determine the location of a person's center of gravity. This can be done with the arrangement shown in the figure below A light plank rests on two scales that read Fg1 = 420 N and Fg2 = 300 N. The scales are separated by a distance of 2.00 m. How far from the woman's feet is her center of gravity?
3. Two people carry a heavy electric motor by placing it on a light board 2.00 m in length. One person lifts at one end with a force of 700N, and the other lifts the opposite end with a force of 500N. What is the weight of the motor, and where along the board is its center of gravity located? (Note: The center of gravity of an object is the point where the weight passes through.) Draw the FBD.
A museum of modern art is displaying an irregular 426-N sculpture by hanging it from two thin vertical wires, A and B, that are 1.25 m apart. The center of gravity of this piece of art is 48.0 cm from its extreme right tip. Find the tension in each wire.
A weightless rod, 4.0 m long, supports three weights as shown. Where is its center of gravity? xCM = in m
1. A museum of modern art is displaying an irregular 426-N sculpture by hanging it from two thin vertical wires, A and B, that are 1.25 m apart. The center of gravity of this piece of art is 48.0 cm from its extremeright tip. Find the tension in each wire. Give also the FBD. Show your complete solution.
Two people carry a heavy electric motor by placing it on a light board 2.10 mm long. One person lifts at one end with a force of 450 NN, and the other lifts the opposite end with a force of 570 NN. What is the weight of the motor? Express your answer in newtons. Where along the board is its center of gravity located? Express your answer in meters. Suppose the board is not light but weighs 190 NN, with its center of gravity at its center, and the two people each exert the same forces as before. What is the weight of the motor in this case? Express your answer in newtons. Where is its center of gravity located? Express your answer in meters.
For the student shown, approximately how far from her feet is her center of gravity?A. 0.6 m B. 0.8 m C. 1.0 m D. 1.2 m
Two children of mass 19 kg and 27 kg sit balanced on a seesaw with the pivot point located at the center of the seesaw. a) If the children are separated by a distance of 3.00 m, at what distance from the pivot point is the small child sitting in order to maintain the balance?
An irregularly shaped object that is 10m long is placed with each end on a scale. If the scale on the right reads 96N while the scale on the left reads 71N how far from the left end is the center of gravity of this object?
In an isometric exercise a person places a hand on a scale and pushes vertically downward, keeping the forearm horizontal. This is possible because the triceps muscle applies an upward force M perpendicular to the arm, as the drawing indicates. The forearm weighs 24.0 N and has a center of gravity as indicated. The scale registers 103 N. Determine the magnitude of M. N

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