1. The PASCO human arm model is configured such thatthe cord representing the bicep is perfectly vertical andthe forearm is at 90° (in the figure to the right, the cordis not quite vertical). A mass of 100 g is attached to thehand. Draw a free-body diagram on the figure to theright showing all forces which act on the forearm.The force of the bicep F on the armThe force of the humerus FH on the armThe weight of the forearm WThe mass in the hand Wm100 gBe careful to draw the force vectors with tails beginning at the point where the force is actuallyapplied to the forearm.2. Consider the free body diagram below. Determine the perpendicular component F̟ of theforce F exerted by the biceps brachii on the forearm. Use the fact that cos 0 = H/B to writethis component directly in terms of the humerus length H and the biceps length B.H3. If the forearm is in equilibrium, then there is no angular acceleration and therefore the sum ofthe torques applied to the forearm must be zero. Using your answer above, write an equationshowing the relationship between the magnitudes of the applied forces F, WA, and Wm.Assume that the center of mass of the arm is half of the arm length l. Choose your origin to bewhere the force of the humerus is applied, so that we don't need to know that force.4. What dothink are some disadvantages of your muscle having such a short lever arm?5. What are some advantages of your muscle having such a short lever arm?

Given information: The Force of the Bicep on the arm = F The Force due to Humerus on the arm = FH…

The PASCO human arm model is configured such that the cord representing the bicep is perfectly vertical and the forearm is at 90° (in the figure to the right, the cord is not quite vertical). A mass of 100 g is attached to the hand. Draw a free-body diagram on the figure to the right showing all forces which act on the forearm. • The force of the bicep F on the arm • The force of the humerus Fy on the arm • The weight of the forearm WA • The mass in the hand Wm Be careful to draw the force vectors with tails beginning at the point where the force is actually applied to the forearm. 100

The PASCO human arm model is configured such that the cord representing the bicep is perfectly vertical and the forearm is at 90° (in the figure to the right, the cord is not quite vertical). A mass of 100 g is attached to the hand. Draw a free-body diagram on the figure to the right showing all forces which act on the forearm. • The force of the bicep F on the arm • The force of the humerus Fy on the arm • The weight of the forearm WA • The mass in the hand Wm Be careful to draw the force vectors with tails beginning at the point where the force is actually applied to the forearm. 100

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

Figure(a) depicts a head-on view of a 1000 kg mass private airplane flying in a state of equilibrium. The force labeled P represents the lift force acting on each wing, and W represents the gravitational weight of the craft. Fig. (b) depicts a more detailed view of the wing ABCD showing its physical dimensions and the assumed location of the lift force P. The wing has a mass of 200 kg and a center of gravity at point B. The wing is attached to the fuselage at point A, which can be modeled as a pin connection. The wing is supported by a pin-connected strut BE whose mass may be neglected. (a) Sketch a free-body diagram of the forces acting on the wing depicted in Fig (b). Compute the vertical lift force P. (c) Compute the forces supported by the strut BE and the pin at A. Hint: You may model the wing as a two-dimensional structure where all forces lie in the same plane. (a) P XERO y W (b) 1.4 m + 2 m B с 0.6m 2.4m D
With the elbow flexed 30 degrees, the moment arm of the biceps is equal to 10 mm. Solve for the force exerted by the biceps given the following assumptions: —the biceps is the only muscle active —the center of mass of the forearm is located 200 mm from the elbow center of rotation —the mass of the forearm is 2 kg
This is all the information that's given: A link arm (see figure below) has the mass m and center of gravity / center of mass at point G. The arm is freely articulated at point O. At points A, B and C, respectively, there are attachments for a spring and a rope that runs over a stationary pulley at point D (neglect the dimensions of the pulley). The spring is 2.0 m long in the untensioned position and gives a force F = k s on the arm, where s is the extension / compression of the spring. If the arm is in equilibrium, the sum of all moments of force on the arm must be zero, ie. Sum(Mi) = Sum(ri) × Fi = 0 Data: m = 150 kg, k = 2.0 kNm^−1, OG = 1.4m, OB = 2.8m, OC = 4.2m, D = (6.5, 2.0) m, g = 9.8ms^−2 a) Identify all the forces that give a moment (with regards to 0) and express both the forces and position vectors for the forces' points of attack in component form. Help: Write all vectorial quantities as an amount multiplied by a unit vector b) Set up and solve (moment) the equilibrium…
need help with Part D Please
As shown in the following figure, a cylinder is placed on a cart. Neglecting the effect of friction in all surfaces, find the normal reaction forces at points A and B, in terms of force P, masses Mand m and acceleration of gravity, g. m B A 60° P M 60°
• A pin-connected two-bar frame supports a 50 kg cylider on an inclined surface, as illustrated in the illustration below. Assume that all of the surfaces are perfectly smooth. • Calculate the forces that the contacting surfaces exert on the cylinder. • The responses at the two-bar frame's supports A and C.
Please please answer all Thanks
Consider the bracket shown in Fig-3. If: • F1 = 10 lb @ -90° • a = 2 ft • b = 4 ft c= 1 ft then, what is the magnitude of the horizontal reaction at point 'A'? O O lb 10 lb 14.2 lb 20 lb 26.4 lb 30 lb 32.3 lb 40 Ib 45 lb 50 Ib 54.1 lb 60 lb 67.1 lb 70 lb 72.7 lb O O O O O O OOOO
A beam of length 6 m and negligible weight is supported by a pin on its left end A and a roller support on its right end 8. A 15 KN force is applied at 2 m from the pin support. A 6 KN force is applied at 2 m from the roller support. 2 m 15 KN 2 m 6 KN 2 m B Complete the following tasks: 1. Draw a free body diagram of the rod, showing all forces acting on the rod, including reaction forces. 2. Determine the magnitude of all reactions at A and B. 3. Draw the shear force diagram and the bending moment diagram, indicating the values of the shear force and of the bending moment at the pin support A, at 2 m and 4 m distances to the right of A and at the roller support B.
Part D - A tractor shovel The tractor shovel shown (Figure 4) carries a 550 kg load that has its center of mass at H. The shovel's dimensions are: a = 52.0 mm, b = 208 mm, c = 312 mm, d = 104 mm, and e = 364 mm. Find the reaction force at E. Assume that the positive direction of the a and y axes is to the right and upward, respectively. Figure 4 of 4 Enter the Cartesian components of the reaction force at E separated by a comma. Express your answers in newtons to three significant figures. • View Available Hint(s) 30° 30° B ΑΣφ vec Ez, Ey = H. Submit b 2h Next > Provide Feedback
The shaft in the figure, carrying three unbalanced masses, is rotating at a constant speed hızla = 10 r / s. Find the balancing values (kg.mm) and their positions in case of balancing in DI and DII planes.
Based on the figure, (a) The entire system is in equilibrium, both in translational and rotational conditions. What will happen to the tension in the string if Fapp moves further to the right? (b) Is the direction of the pivot force parallel to the meterstick? (c) Using the convention that counterclockwise torques are positive and clockwise torques are negative, sum the torques about the center of the mass of the meterstick. What do you expect the sum to be?