The medial and lateral heads of the gastrocnemius each exert…

The medial and lateral heads of the gastrocnemius each exert a force of 350 N that is directed at 14.3° to the left and right of the midline of the muscle, respectively, while a person is standing in anatomical position. Determine the magnitude and direction of the resultant.

Suppose the graph below represents the most common form of t…

Suppose the graph below represents the most common form of the angle-torque relationship, such as for the elbow flexors. If the force exerted by the elbow flexor muscles remained constant at 3.5 kN over this range of motion, what would be the minimum and maximum values for the moment arm? (1 radians = 57.3 degrees.)

Over 95% of hip fractures among older adults are due to slip…

Over 95% of hip fractures among older adults are due to slipping or tripping. Consider an older adult who has just tripped going up the stairs in their home. At trip initiation, they have a forward velocity of 9.47 m/sec and a vertical velocity of 3.21 m/sec. Find the angle of take-off (relative to the horizontal) and the magnitude of the resultant velocity vector.

You are working with an orthopedic surgeon, and they ask you…

You are working with an orthopedic surgeon, and they ask you to help model how much force the knee extensor muscles exert on the lower leg (shank) as it moves through the swing phase of the gait cycle. Assume the upper leg (femur) is in contact with the shank during this phase of the gait cycle. Draw a free body diagram on your scratch paper of this problem, and upload it at the end after you have submitted your exam.

Now that you have completed the exam, you will now submit yo…

Now that you have completed the exam, you will now submit your exam. You will then return to the Midterm 1 Module in Canvas for today, and upload a scanned version of all your handwritten work. You will have 10 minutes after your submission time to upload a scanned version of any written work for partial credit considerations. No partial credit can be provided for any problem in which the work is illegible or not clearly numbered, or if any pages are missing. Your exam submission time will be stamped in Canvas and will be used for cross-reference. Thank you.