Fm= 500 N and Fx and Fy are going to be the force of the femur, in the x component and the y component
first we find the x component:
Fm x cos (66°) - Fx x cos (33°) = 0
so Fx= 242.48 N
next the y component is:
Fm x sin(66°) - Fy x sin(33°)= 0
so the Fy is:
838.67 N
The result of the force is: F= (Fy^2 + Fx^2) ^(1/2) = 873.02N
The diagram of the leg shows the femur (I) and tibia (2). The quadriceps muscle (3)...
When you bend your knee, the quadriceps muscle is stretched.
This increases the tension in the quadriceps tendon attached to
your kneecap (patella), which, in turn, increases the tension in
the patella tenson that attaches your kneecap to your lower leg
bone (tibia). Simultaneously, the end of your upper leg bone
(femur) pushes outward on the patella. See the diagram. In the
quadriceps and patellar tendon let tension = T = 60N.
A) What are the x- and y- components...
Problem 10: The upper leg muscle (quadriceps) exerts a force of FQ=1390 N, which is carried by a tendon over the kneecap (the patella) at the angles shown in the figure. Part (a) Find the magnitude of the force, in newtons, exerted by the kneecap on the upper leg bone (the femur) at the point P. Part (b) What angle does the force from the kneecap act at, in degrees measured counterclockwise from the positive x-direction shown in the figure?
The upper leg muscle (quadriceps) exerts a force of 1220 N,
which is carried by a tendon over the kneecap (the patella) at the
angles shown in Figure 5.43. Find the magnitude and direction of
the force exerted by the kneecap on the upper leg bone (the femur).
N ° (counter-clockwise from an axis directed to the left)
he upper leg muscle (quadriceps) exerts a force of FQ = 1100 N, which is carried by a tendon over the kneecap (the patella) at the angles shown in the figure below. Find the magnitude in newtons and direction in degrees counter-clockwise from an axis directed to the left of the force exerted by the kneecap on the upper leg bone (the femur). magnitude N direction ° counter-clockwise from an axis directed to the left
The upper leg muscle
(quadriceps) exerts a force of FQ = 1380 N, which is carried by a
tendon over the kneecap (the patella) at the angles shown in the
figure.
(5%) Problem 20: The upper leg muscle (quadriceps) exerts a force of FQ-1380 N, which is carried by a tendon over the kneecap (the patella) at the angles shown in the figure 55° 750 Otheexpertta.com > 50% Part (a) Find the magnitude of the force, in newtons, exerted by...
An ACL patient is doing leg extensions to strengthen his quadriceps muscles. With no additional weight added, the patient's lower leg (shank+foot) has a mass of 6.25 kg. The center of mass of the lower leg segment is located 32 cm from the axis of rotation of the knee joint. The leg is flexed 25 degree down from horizontal. The quadriceps muscle acts through the patellar tendon, which inserts 5 cm from the axis of rotation of the knee joint...
A person is doing leg flexion/extension exercises from a sitting
position in order to strengthen the person's quadracept muscles.
The forces acting in the lower leg are illustrated in the figures
below.
W0 is the weight of the boot, W1 = 160 N
is the weight of the person's lower leg, FM is the
magnitude of the force exerted by the quadricepts muscle on the
tibia (shinbone) through the patellar tendon, and FJ is
the force due to the tibiofemoral...
PROBLEM 2 Knee Extension - The angular motion of the lower leg about the knee joint, and the forces and torques produced by the muscles crossing the knee joint during knee flexions and extensions have been investigated by a number of researchers utilizing different experimental techniques. One of these techniques is discussed here. Consider the person illustrated in Fig. 10.12. The test subject is sitting on a table, with the back placed against a back rest and the lower legs...