Resultant forces and moments at wrist

Assignment Help Physics
Reference no: EM1311051

The following data estimated:

 Segment Length(cm) Weight(N) Center of mass from proximal joint(cm) Upper arm 35 25 15 Forearm 25 15 10 Hand 20 5 10

Question 1. Given the upper extremity posture below, calculate the resultant forces and moments at the wrist, elbow and shoulder for pulling 200N with the forearms supinated, use a 2-D static analysis. Assume the force is exerted at the center of mass of the hand, perpendicular to the hand.

Question 2. Assume  that biceps exerts force at an angel of 150° with respect to the forearm and the insertion for biceps is 5 cm from the elbow. Calculate Fm the biceps muscle force, and R, the joint reaction force at the elbow for the situation depicted in problem#1. Use a 2D static analysis.

Question 3. Using a 2D dynamic analysis of the above situation( at the instant in the time shown), calculate Fm, the biceps muscle force. Assume that the moment of inertia of the forearm, hand and load system about the elbow is 3 kg-m2 and that the instantaneous angular acceleration of this system is 10 rad/sec2.

Questions Cloud

 Consideration of primary drive : Which of the given would be considered a primary drive? Computation of the payback period of the investment : Computation of the payback period of the investment and and it is expected to provide cash inflows Computation of the npv of the project : Computation of the NPV of the project and What is the NPV for the following project if its cost of capital Computation of the internal rate of return of capital : Computation of the Internal rate of Return of capital project and What is the IRR for the following project if its initial cost Resultant forces and moments at wrist : Find the resultant forces and moments at wrist, biceps muscle force, elbow and shoulder and joint reaction force using 2-D static analysis. Computation of the cost of equity using capm : Computation of the cost of equity using CAPM and What is the cost of the firm's common stock equity Computation of the weighted average cost of capital : Computation of the weighted average cost of capital and What is the weighted average cost of capital of the firm What is stock valuation under equilibrium situation : What is Stock valuation under equilibrium situation and Assuming the stock market is efficient and the stocks are in equilibrium Objective type questions on annual interest rate : Objective type questions on annual interest rate and accounts receivable and In a perpetual inventory system, the cost of purchases is debited to

Write a Review

Establish the average net force

Establish the average net force

How numerous extra electrons are on this particular oil drop

How numerous extra electrons are on this particular oil drop (given the presently known charge of the electron)?

What amount of charge reaches the anode

A small metal bead, labelled A, has a charge of 29 nC. It is touched to metal bead B, initially neutral, so that the two beads share the 29 nC charge, but not of necessity evenly. When the two beads are then placed 5.0 {rm cm} apart, the force betwee..

Find out the frequencies of the normal modes

Two heavy pendula of mass m are suspended from strings of length l inside a railroad car of mass M that can roll freely on horizontal tracks (ignore the moment of inertia of the wheels).

Find out an internal resistance of the battery

The linear impulse delivered by the hit of a boxer is 248 N • s during the 0.373 s of contact. What is the magnitude of the average force exerted on the glove by the other boxer? React in units of N

Question on constant speed

Question on constant speed

How far from charge a is charge c

Charge A and charge B are 2.5 m apart. Charge A is 1.4C and charge B is 2.5C. Charge C, which is 2.0 C, is situated between them and force on charge C is zero. How far from charge A is Charge C.

Establish the initial volume of the gas

Establish the initial volume of the gas . What is the magnitude of normal force that each brake pad applies to the rim.

The cylinder falls the similar distance in both cases

Chuck Norris's razor blade has an output force of 2500 lbs is used to shear his burley face. The shaving blade has the 0.35 inch thick blade with a 55 degree slope.

What is the radius of its circular path

The speed of light in a transparent medium (such as glass) is less than the speed of light in a vacuum. Is this a violation of the theory of relativity.

Discover the speed of the race car

The distance between deer B and C is 92 m. What is distance between deer A and C.

What is the block''s volume

In order to clearly read a book 24 cm away, a farsighted girl needs an image to be 35 cm from her eyes. What focal length is necessary for lens in her eyeglasses.