What is the moment due to the ankle weight about the hip

Reference no: EM131002598

A person is lying on an exercise mat and lifts one leg at an angle of 30.0 degree from the horizontal with an 89-N (20-lb) weight attached to the ankle. The distance between the ankle weight and the hip joint (which is the rotation axis for the leg) is 84 cm.

(a) What is the moment due to the ankle weight about the hip?

(b) Without doing any calculations, if the angle were increased theta = 40 degree, would this moment increase, or decrease? Why?

Reference no: EM131002598

Questions Cloud

Draw a free-body diagram of the person described : The weight of the upper extremity of an 80 kg male is approximately 45 N. The center of gravity of the upper-extremity is approximately 0.25 m from the shoulder joint. Draw a free-body diagram of the person described. The person should be facing ..

Briefly explain how pension gains and losses are recognized : Explain to Zoeller how the composition of the net periodic pension expense can create the situation he sees. Briefly describe the components of pension expense.

Economic for engineers-minimum attractive rate of return : A machine that produces a certain piece must be turned off by the operator after each piece is completed. The machine "coasts" for 15 seconds after it is turned off, thus preventing the operator from removing the piece quickly before producing the ne..

What is the radius of gyration of this club head : The moment of inertia of the club head is a design consideration for a driver in golf. A larger moment of inertia about the vertical axis parallel to the club face provides more resistance to twisting of the club face for off-center hits. The mass..

What is the moment due to the ankle weight about the hip : A person is lying on an exercise mat and lifts one leg at an angle of 30.0 degree from the horizontal with an 89-N (20-lb) weight attached to the ankle. The distance between the ankle weight and the hip joint (which is the rotation axis for the le..

Would shoppers be unable to purchase : If the supply of turkeys in a particular November turned out to be unusually small, do you think a turkey shortage would result? that is, would shoppers be unable to purchase a turkey for thanks giving meal? why or why not?

The lack of marketing funds, : A new, vitamin-rich drink called ZAP is an entry in the 21 million 8 oz. can sports drink national market. Because of the lack of marketing funds, management has decided to introduce ZAP only in major cities that account for 65% of the U.S. sports dr..

Induce investors to utilize this expanded lending capacity : Suppose the Federal Reserve decided to purchase $10 billion worth of government securities in the open market. How will the lending capacity of the banking system be affected if the reserve requirement is 20 percent? How will banks induce investors t..

Used most effectively in a combined approach : Identify two males in Me tin' Library: one in which the business problem is researched using a qualitalive design and the other u quantitative design. Summarize each of Me research designs. Write a 350- to 700-word paper in which you compare and cont..

User Account

All Pages