Extension to practical applications2. The human forearm can be modeled as a simple lever.Indicate on the diagram with proportional arrows, thedirection of the load and effort forces on the Radius bone attheir points of action. Ignore the weight of the bones andtriceps. Draw a fulcrum for the Radius bone. How will theeffort force supplied by the bicep compare to the load force?Estimate the ratio of effort force / load force using thedistances in the diagram and your collected data above.ScapulaTendontabagaHumerusBisceps muscle620986255RadiusTricepsmuscleUlnaBonus!Page 3 of 3

The human forearm can be modeled as a simple lever. Indicate on the diagram with proportional…

Answered: Extension to practical applications 2.…

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter10: Work, Energy And Machines

Section10.2: Machines

Problem 28PP

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Extension to practical applications 2. The human forearm can be modeled as a simple lever. Indicate on the diagram with proportional arrows, the direction of the load and effort forces on the Radius bone at their points of action. Ignore the weight of the bones and triceps. Draw a fulcrum for the Radius bone. How will the effort force supplied by the bicep compare to the load force? Estimate the ratio of effort force / load force using the distances in the diagram and your collected data above. Scapula Tendon -0.049+ Humerus Bisceps muscle .204 = 0.155 Triceps muscle Radius Bonus! Ulna Page 3 of 3
We analyzed the biceps muscle example with the angle between forearm and upper arm set at 90° (see figure below). Triceps muscle Biceps V muscle PHYSICS CG FET ma Wh CG Wa Find the force exerted by the biceps muscle when the angle is 135° and the forearm is in a downward position. (Assume that r, = 6.0 cm, r = 14 cm, r, = 40 cm, m, = 2.0 kg, and m, = 3.4 kg. Enter the magnitude.)
Find the value of W in Newton , which is required to maintain equilibrium configuration as shown in Figure below.
16. Calculate the effort by the biceps muscle according to the following diagram. F R 50 mm effort 150 mm 20 N 400 mm 10 N biceps muscle weight of forearm d₁ load
Three loads are applied to a beam as shawn. The beam is supported by a roller at A and a pin at B. Neglecting the weight of the beam, determine the reactions at A and B when P = 15 kips. -3ft
no ai please. it will be wrong
The steel I-beam in the drawing has a weight of 2.55 × 103 N and is being lifted at a constant velocity. What is the tension in each cable attached to its ends?
A rope pulley system with 3 pulleys in the top and 2 in the bottom is required to lift a load. If 23% of the effort is lost due to friction, what is the maximum load that can be lifted if an effort of 300 N is applied. Also what is the force at the top while lifting this load.
Unlike most of the other muscles in our bodies, the masseter muscle in the jaw, as illustrated in the figure, is attached relatively far from the joint, enabling very large forces to be exerted by the back teeth. This is shown in the figure below, where a person is biting down on a bullet placed between the back teeth. (FM = 200 N and r. = 3.7 cm.) M= 2.9 cm Masseter muscle гeaction (a) Using the information in the figure, calculate the magnitude of the force exerted by the teeth on the bullet. (b) Calculate magnitude of the force on the joint.
i ight Pre-lab Question: 1. What are the conditions for static equilibrium? SHOW ALL WORK AND UNITS FOR THE FÖLLOWING PROBLEMS. 2. A 1.0 meter long ruler shown below is balanced at its center of gravity (CG). Where must a 500 g mass be hung so that the system is balanced? cm, 0.1 m 5ố g 100 200g
A device for exercising the upper leg muscle is shown in the Figure, together with a schematic representation of an equivalent lever system. a) Calculate the force exerted by the upper leg muscle to lift the mass at a constant speed.
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