What torque is created by the dumbbell about the elbow joint

Reference no: EM13335138

Katherine is attempting a biceps curl with a 100 N dumbbell. She is standing upright, and her forearm is horizontal. The moment arm of the dumbbell about Katherine's elbow joint is 30 cm.

a. What torque is created by the dumbbell about the elbow joint?

b. What torque is created by Katherine's elbow flexor muscles to hold the dumbbell in this position? Ignore the weight of her arm and hand.

c. If the elbow flexor muscles contract with a force of 1000 N and hold the barbell in static equilibrium, what is the moment arm of the elbow flexor muscles about the elbow joint?

Reference no: EM13335138

Questions Cloud

Admission office or the pharmacy : You have been appointed Project Manager of your facility to determine whether you should automate your Admission Office or the Pharmacy.

Distinguish between private and social costs and use : Distinguish between private and social costs and use this distinction to explain why the air in cities is so polluted from automobile exhaust fumes. Examine how government can try to correct this externality.

What is joshs average angular acceleration : When Josh begins his discus throwing motion, he spins with an angular velocity of 5 rad/s. Just before he releases the discus, what is Josh's average angular acceleration

What is the variance : You produce a product that will earn $100,000 if there is a recession and $100,000 if there is no recession (i.e. the same regardless). The probability of a recession is 50%. What is the variance?

What torque is created by the dumbbell about the elbow joint : Katherine is attempting a biceps curl with a 100 N dumbbell. She is standing upright, and her forearm is horizontal. What torque is created by the dumbbell about the elbow joint

List three factors that can change the economy : List three factors that can change the economy's potential output.What is the impact of shifts of the aggregate demand curve on potential output?Illustrate your answers with a diagram.

What are the financial statements presented in the report : What are the financial statements presented in the report and how many disclosures are in the report and what was the net income of the company? Explain the revenues and the expenses components.

How long will it take you to save an adequate amount : How long will it take you to save an adequate amount for retirement if you deposit $2,500 per quarter year into an account beginning today that's pays an effective annual rate (EAR) of 4 percent

Find torque is created by the dumbbell : Leigh is doing a knee extension exercise using a 100 N weight strapped to her ankle 40 cm from her knee joint. For this position, what torque is created by the dumbbell about her knee joint axis

User Account

All Pages