A person with 100kg mass is standing erect on the tip of both feet. Find the contact force Cexerted by thebones -tibia and fibula- on the ankle joint, and the muscle force Fon the tendon of calcaneus at 37° withthe horizontal. In this posture, the distance between the application points of Cand F in a longitudinal cutis 5 cm; the distance between the application points of the Cand the normal force is 6 cm.F375 cm6 cm

Given that :m=100 kgg=9.8 m/s2θ=37°

Answered: A person with 100kg mass is standing…

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)...

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Question 15 (2 points) Which of the pictured rigid bodies cannot be in static equilibrium? A В Oc A B
y T T х F = 100N An object is subjected to three forces as shown in the figure. Assume 0 = 25.2 °, what is T if the object is in static equilibrium? Enter your answer with three significant figures.
During most of the stance phase of the gait, the knee flexion is less than 20º. What force must the quadriceps muscle apply to maintain this flexion while standing on one leg? The patient's weight is 836N, assuming that the distance from the center of the joint to the line of gravity is 5 cm and the distance perpendicular to the center of the joint towards which the muscle acts is 5 cm, and the muscle acts ( pull) at 60º to the horizontal.
A uniform ladder of mass (m= 13.5 kg) and length (L) leans against a frictionless wall. If the angle ©60.0°, find the static friction force between the ladder and the floor when a 60.0-kg person stands two-third of the wayup the ladder?
The following forces are acting on a particle: 500 N due east; 300 N 30o E of S; Z Newton 60o West and X Newton 40o S of W. If the particle is in equilibrium, solve for Z and X.
6) The system shown in in equilibrium. A mass of 225 kg hangs from theend of the strut, which is connected by a hinge to the ground and makes anangle of 45 degrees with the ground. The strut has a mass of 45.0 kg. Asupport cable is attached from a wall to the center of the strut and it makesan angle of 70 degrees with the vertical wall. a) Find the tension in the cable holding up the strut, which make anangle of 70 degrees with the wall. b) Find the horizontal and vertical forces exerted on the strut by the hinge.
The horizontal beam inFig weighs 190 N, and itscenter of gravity is at its center.Find (a) the tension in the cable and(b) the horizontal and vertical componentsof the force exerted on the beamat the wall.
PROBLEM 1: Determine the mass of the heaviest uniform bar that can be supported in the position shown if the breaking strength of the horizontal cable attached at C is T kN. Neglect friction. A 4 B Given: x = 1.2 m O = 20° T = 15 kN W = kN (round off to 2 decimal places) 3.
The upper end of a wide-skid W 8 × 21 steel column (E = 30 × 103 ksi) is supported laterally between two tubes (see figure). The tubes are not attached to the column and the friction between the tubes and the column is not reliable. The base of the column provides fixed support and the column is 13 ft long. Determine the critical load for the column, consider the Euler buckling in the web plane and also perpendicular to the web plane.
A 32.8 ft ladder weighing 400 N leans against a frictionless vertical wall such that it makes an angle of 53 degrees with the floor. Find the force exerted by the wall on the ladder.
Body U with mass 5m is stacked on the top body W withmass m, and released. The bodies are in contact along thefrictionless interface at 45 to the vertical. The body U isin contact with the frictionless vertical wall. Body W lieson the floor with coefficient of friction u. Relevantdimensions are shown in the figure. Express the results interms of given quantities: m, g, h and u. Body U must stay in contact with the wall. Using the equations of motion for the two bodies compute the accelerations during the motion while in contact.
A hand exerts a force of 25 lbs on a scale at 16 inches from the joint center at the elbow. If the triceps attach to the ulna at a 90° angle and at a distance of 2.5 cm from the elbow joint center, and if the weight of the forearm and hand is 12 lbs with the hand/forearm CG located 15 cm from the elbow joint center, how much force is being exerted by the triceps? 880 1488 N 8800 O 15.640 N Onone of the answers are correct

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