Physics, 11.04.2020 00:16 jpichardo2021
Set up a free body diagram of the elbow and use it to derive an equation solving for the biceps brachii muscle force when performing an isometric bicep exercise with a 20 kg weight. Solve for the biceps force (FB) in terms of the following variables (do not plug in numbers at this point). Assume the humerus is kept vertical and the elbow is flexed 60° (remember straight arm is 0° of elbow flexion). Remember to draw your FBD large enough to have room to work (i. e. use a whole sheet of paper!).
Fb = Biceps brachii muscle force
MA = Biceps moment arm
Theta = Elbow flexion angle
L = Distance from the elbow COR to center of mass of forearm
m = Forearm mass X Distance from the elbow COR to the point of application of the external load
Fr = Resistive force of the weight during isometric flexion exercise
g Gravitational constant
Your FBD should show 3 forces: the force from the external resistance (Fr), the force due to weight of the forearm (mg), and the force due to the biceps brachii muscle (Fb).
Answers: 3
Physics, 21.06.2019 23:00, yourgirlnevaeh
For general projectile motion, when the projectile is at the highest point of its trajectory, its acceleration is zero? a)the horizontal and vertical components of its velocity are zero. b) its velocity is perpendicular to the acceleration. c)the horizontal component of its velocity is zero. d)its velocity and acceleration are both zero.
Answers: 1
Physics, 22.06.2019 10:00, kanonhuffmanp3rnmy
The frequencies refer to the sample data collected from a population of interest when performing a hypothesis test comparing two or more population proportions.
Answers: 2
Physics, 22.06.2019 10:30, janeou17xn
Find the magnetic field a distance r from the center of a long wire that has radius a and carries a uniform current per unit area j in the positive z direction.
Answers: 2
Set up a free body diagram of the elbow and use it to derive an equation solving for the biceps brac...
Spanish, 07.04.2020 02:51
Mathematics, 07.04.2020 02:51