A 164-cm-tall person lies on a light (massless) board which is supported by two scales, one under the top of her head and one beneath the bottom of her feet. The two scales read, respectively, 35.1 and 31.6 kg. (Figure 1) Part A What distance is the center of gravity of this person from the bottom of her feet? Express your answer to three significant figures and include the appropriate units. for Part A for Party do for Part redo for Part A reor Part A keyboard shortcuts for Part A help for Part A d-77.7 m Submit Previous Answers Request Answer

A 164-cm-tall person lies on a light (massless) board which is supported by two scales, one under the top of her head and one beneath the bottom of her feet. The two scales read, respectively, 35.1 and 31.6 kg. (Figure 1) Part A What distance is the center of gravity of this person from the bottom of her feet? Express your answer to three significant figures and include the appropriate units. for Part A for Party do for Part redo for Part A reor Part A keyboard shortcuts for Part A help for Part A d-77.7 m Submit Previous Answers Request Answer

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

I Rev A woman is pushing a load in a wheelbarrow, as in (Figure 1). The combined mass of the wheelbarrow and the load is 140kg, with a center of gravity at d = 0.25m behind the axle. The woman supports the wheelbarrow at the handles, 1.1 m behind the axle. Part A What is the force required to support the wheelbarrow? Express your answer with the appropriate units. HA F = Value Units Submit Previous Answers Request Answer Figure 1 of 1 X Incorrect; Try Again Part B What fraction of the weight of the wheelbarrow and the load does this force represent? ? F w ! You have already submitted this answer. Enter a new answer. No credit lost. Try again. 1.1 m P Pearson
D3
Part A An 88 kg person stands on a uniform ladder 4.0 m long, that weighs 90 N, as shown in the figure(Figure 1). The floor is rough; hence, it exerts both a normal force, f1, and a frictional force, f2, on the ladder. The wall, on the other hand, is frictionless; it exerts only a normal force, f3. Using the dimensions given in the figure, find the forces exerted on the ladder when the person is halfway up the ladder. Express your answers using two significant figures separated by commas. ? f1, f2, fa = kN Submit Request Answer Part B Find the forces exerted on the ladder when the person is three-fourths of the way up the ladder. Express your answers using two significant figures separated by commas. να ΑΣΦ ? f1, f2, f3 = kN Figure 1 of 1 Submit Request Answer Provide Feedback a-3.8 m mg
The thin ring can be adjusted vertically between three equally long cables from which the 300 kg chandelier is suspended. (Figure 1) Part A Draw a free-body diagram of the point at A. Draw the vectors starting at the black dot. The location and orientation of the vectors will be graded. The length of the vectors will not be graded. Figure 0.5 m D 120 120 120 1 of 1 +Σ 0 No elements selected De Select the elements from the list and add them to the canvas setting the appropriate attributes. Submit Request Answer i ?
Pl
Many aspects of a gymnast's motion can be modeled by representing the gymnast by four segments consisting of arms, torso (including the head), thighs, and lower legs, as in the figure below. Thigh O Arm Leg 60° 60° Torso a b In the figure, (b) shows arrows of lengths r.a locating the center of gravity of each segment. Use the data below and the coordinate system shown in figure (b) to locate the center of gravity of the gymnast shown in figure (a). Masses for the arms, thighs, and legs include both appendages. (Enter your answers in m, to at least three significant figures.) Segment Mass (kg) Length (m) rcg (m) Arms 6.81 0.548 0.236 Torso 33.6 0.613 0.337 Thighs 14.1 0.368 0.149 Legs 7.50 0.350 0.227 HINT Xcg m Ycg m
what is c.g for this geometry?
A 110 g ball and a 240 g ball are connected by a 40-cm-long, massless, rigid rod. The balls rotate about their center of mass at 150 rpm. Part A What is the speed of the 110 g ball? Express your answer to two significant figures and include the appropriate units. V = μA Value Units ?
1 A person exercises the quadriceps as shown. The diagram on the right shows a model of the leg, where the person's lower leg of length L = 0.60 m is held at an angle 0₁ = 60° with respect to the horizontal. The quadriceps muscle exerts a force FM via the tendon that attaches to the tibia at a distance d = 0.10 m from the knee, in order to lift a weight of mass m₁ = 5.91 kg that is attached to the foot. The tendon makes an angle of 0₂ = 11.5° with respect to the tibia. 2 What is the force required to hold the weight at the position shown in the diagram? Assume the person's lower leg weighs 150 N and its centre of mass is located at a distance L/2 from the knee. Round your answer to the nearest Newton. FM M d- 02 01 m₁
A 4-m long, 150-kg steel beam is attached to a wall with one end connected to a hinge that allows the beam to rotate up and down. The other end of the beam is held in a horizontal position with a cable that makes a 27° angle with the beam and is attached to the wall (see (Figure 1)). a.What is the tension force that keeps this beam in static equilibrium? b. A mass of 75 kg is hung from the beam 3 meters away from the hinge (see (Figure 2)). Now what is the tension force that keeps this beam in static equilibrium? c.What is the vertical component of the force that the hinge exerts on the beam?
Suppose a horse leans against a wall as shown in the figure. The total of the horse and rider is 500 kg. Part a : calculate the magnitude of the force in newtons on each foot of the horse in the figure assuming the center of the mass of the horse between and the weight is equally divided between the two feet on the ground. Part b: what is the minimum coefficient of friction between the hooves and ground? Note that the force exerted by the wall is horizontal.
Answer a b and c please