The figure shows the anatomical structures in the lower leg and foot that are involved in...
The figure shows the anatomical structures in the lower leg and foot that are involved in standing on tiptoe, with the heel raised slightly off the floor so that the foot effectively contacts the floor at only at point P. Assume distance a = 5.6 cm, distance b = 16 cm, and the person's weight W = 610 N. Take the upward direction to be positive. Of the forces acting on the foot, what are (a) the force at point A from the calf muscle, and (b) the force at point B from the lower leg bones?
Homework Answers
A)
Force, Fa = (16 x 610)/5.6 = 1742.86 N
B)
Force, Fb = 1742.86 + 610 = 2352.86 N
Comment in case any doubt please rate my answer...
Add Answer to:
The figure shows the anatomical structures in the lower leg and
foot that are involved in...
Chapter 12, Problem 013 The figure shows the anatomical structures in the lower leg and foot...
Chapter 12, Problem 013 The figure shows the anatomical structures in the lower leg and foot that are involved in standing on tiptoe, with the heel raised slightly off the floor so that the foot effectively contacts the floor at only at point P. Assume distance a 4.2 cm, distance b- 17 cm, and the person's weight W 830 N. Take the upward direction to be positive. Of the forces acting on the foot, what are (a) the force at...
13 Figure 12-31 shows the anatomical structures in the lower leg and foot that are involved...
13 Figure 12-31 shows the anatomical structures in the lower leg and foot that are involved in standing on tip- toe, with the heel raisecd slightly off the loor so that the foot effectively contacts the floor only at point P. Assume distance a- 50 cm, distance b 15 cm, and the Calf muscle Lower leg hones person's weight W 900 N. Of the forces acting on the foot, what are the (a) magni tude and (b) direction (up or...
A person is doing leg flexion/extension exercises from a sitting position in order to strengthen the...
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,...
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...
The Achilles tendon is located on the back of the ankle as far as possible from...
The Achilles tendon is located on the back of the ankle as far as possible from the ankle joint (6 cm) to give the calf muscles (gastrocnemius and soleus) the maximum advantage lifting the body. Assume a 98 kg basketball player (weight of 961 N) with a foot length of 30 cm is jumping from the right foot with only the ball of the foot in contact with the floor. a) Assuming static equilibrium, how much muscle force (G) in...
Consider a person holding a bag like in the diagram, palm facing upwards, forearm parallel to...
Consider a person holding a bag like in the diagram, palm facing
upwards, forearm parallel to the floor, and upper arm making a
right angle with their forearm. Masses are added to the bag until
the subject can no longer comfortably keep the angle between their
upper arm and forearm at 90 degrees.
Weight of person: 170 lbs (756.5 N)
Body Segment and Percentage Amount of Total Body Weight
Head( 7.3%), Hand(0.7%), Trunk(50.7%) Thigh(10.3%), Upper
Arm(2.6%)
Calf(4.3%), (Forearm1.6%), Foot(1.5%)
The...
i got 1.4 but it was incorrect and i am not sure why. Please help! READING 2 Materials fracture when the force per unit area, called STRESS, exceeds a critical value. In general, the critical stress...
i got 1.4 but it was incorrect
and i am not sure why. Please help!
READING 2 Materials fracture when the force per unit area, called STRESS, exceeds a critical value. In general, the critical stress depends on the direction as well as the magnitude of the force. For example, bones break differently when subjected to torsional (twisting) stress than when subjected to compressional (or squeezing) stress. Let us consider compressional stress. Wet human bone for 20-39 year olds has...
Materials fracture when the force per unit area, called STRESS, exceeds a critical value. In general, the critical stress depends on the direction as well as the magnitude of the force. For example,...
Materials fracture when the force per unit area, called STRESS, exceeds a critical value. In general, the critical stress depends on the direction as well as the magnitude of the force. For example, bones break differently when subjected to torsional (twisting) stress than when subjected to compressional (or squeezing) stress. Let us consider compressional stress. Wet human bone for 20-39 year olds has an ultimate compressive strength of 1.6x104N/cm2 [8]. Consider a person who falls from a height to the...
Chapter 12, Problem 013 The figure shows the anatomical structures in the lower leg and foot that are involved in standing on tiptoe, with the heel raised slightly off the floor so that the foot effectively contacts the floor at only at point P. Assume distance a 4.2 cm, distance b- 17 cm, and the person's weight W 830 N. Take the upward direction to be positive. Of the forces acting on the foot, what are (a) the force at...
13 Figure 12-31 shows the anatomical structures in the lower leg and foot that are involved in standing on tip- toe, with the heel raisecd slightly off the loor so that the foot effectively contacts the floor only at point P. Assume distance a- 50 cm, distance b 15 cm, and the Calf muscle Lower leg hones person's weight W 900 N. Of the forces acting on the foot, what are the (a) magni tude and (b) direction (up or...
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...
The Achilles tendon is located on the back of the ankle as far as possible from the ankle joint (6 cm) to give the calf muscles (gastrocnemius and soleus) the maximum advantage lifting the body. Assume a 98 kg basketball player (weight of 961 N) with a foot length of 30 cm is jumping from the right foot with only the ball of the foot in contact with the floor. a) Assuming static equilibrium, how much muscle force (G) in...
Consider a person holding a bag like in the diagram, palm facing
upwards, forearm parallel to the floor, and upper arm making a
right angle with their forearm. Masses are added to the bag until
the subject can no longer comfortably keep the angle between their
upper arm and forearm at 90 degrees.
Weight of person: 170 lbs (756.5 N)
Body Segment and Percentage Amount of Total Body Weight
Head( 7.3%), Hand(0.7%), Trunk(50.7%) Thigh(10.3%), Upper
Arm(2.6%)
Calf(4.3%), (Forearm1.6%), Foot(1.5%)
The...
i got 1.4 but it was incorrect
and i am not sure why. Please help!
READING 2 Materials fracture when the force per unit area, called STRESS, exceeds a critical value. In general, the critical stress depends on the direction as well as the magnitude of the force. For example, bones break differently when subjected to torsional (twisting) stress than when subjected to compressional (or squeezing) stress. Let us consider compressional stress. Wet human bone for 20-39 year olds has...
Materials fracture when the force per unit area, called STRESS, exceeds a critical value. In general, the critical stress depends on the direction as well as the magnitude of the force. For example, bones break differently when subjected to torsional (twisting) stress than when subjected to compressional (or squeezing) stress. Let us consider compressional stress. Wet human bone for 20-39 year olds has an ultimate compressive strength of 1.6x104N/cm2 [8]. Consider a person who falls from a height to the...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago