B. Applications and Extensions To assess your understandings of some of this studio's key ideas, your group must answer the following questions together without help from the instructors or other groups. If you hold your upper arm vertical and your lower arm horizontal with your hand palm-down on a table, as shown in the figure below and now push down on the table, you'll feel that your triceps muscle has contracted and is trying to pivot your lower arm about the elbow joint. Triceps 1. If a person with the arm dimensions shown pushes down hard with a 95-N force, what force must the triceps muscle provide? Ignore the mass of the forearm and hand in your calculation. 2. Estimate the combined mass of the forearm and hand and then redo your work in question B1 with this mass 30 cm included in your calculations. 2.4 cm 3. Does ignoring the mass significantly effect the value you calculate for the force exerted by the triceps? Explain why or why not.
B. Applications and Extensions To assess your understandings of some of this studio's key ideas, your group must answer the following questions together without help from the instructors or other groups. If you hold your upper arm vertical and your lower arm horizontal with your hand palm-down on a table, as shown in the figure below and now push down on the table, you'll feel that your triceps muscle has contracted and is trying to pivot your lower arm about the elbow joint. Triceps 1. If a person with the arm dimensions shown pushes down hard with a 95-N force, what force must the triceps muscle provide? Ignore the mass of the forearm and hand in your calculation. 2. Estimate the combined mass of the forearm and hand and then redo your work in question B1 with this mass 30 cm included in your calculations. 2.4 cm 3. Does ignoring the mass significantly effect the value you calculate for the force exerted by the triceps? Explain why or why not.
Related questions
Question
Can you do two and three? I got 1125 N for 1
Transcribed Image Text:B. Applications and Extensions
To assess your understandings of some of this studio's key ideas, your group must
answer the following questions together without help from the instructors or other
groups.
If you
hold
your upper arm vertical and your lower arm horizontal with your hand
palm-down on a table, as shown in the figure below and now push down on the table,
you'll feel that your triceps muscle has contracted and is trying to pivot your lower arm
about the elbow joint.
1. If a person with the arm dimensions
Triceps
shown pushes down hard with a 95-N
force, what force must the triceps muscle
provide? Ignore the mass of the forearm
and hand in your calculation.
2. Estimate the combined mass of the
forearm and hand and then redo your
work in question B1 with this mass
30 cm
included in your calculations.
2.4 cm
3. Does ignoring the mass significantly
effect the value you calculate for the force exerted by the triceps? Explain why or
why not.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 1 images
