When you lift an object by moving only your forearm, the mainlifting muscle in your arm is
Question:
When you lift an object by moving only your forearm, the mainlifting muscle in your arm is the biceps. Suppose the mass of aforearm is 1.20 kg . If the biceps is connected to theforearm a distance dbiceps= 3.50 cm from the elbow,how much force Fbicepsmust the biceps exert to hold a800 g ball at the end of the forearm atdistance dball = 37.0 cm from the elbow, withthe forearm parallel to the floor? How muchforce Felbow must the elbow exert?
Write an expression for ?Fy. Take upward to be thepositive y direction.
Express your answer in terms of some or all of thevariables Fbiceps, Felbow, mforearm, mball,and g.
| ?Fy=0= = |
Write an expression for ?? about the elbow.
Express your answer in terms of some or all of thevariables Fbiceps, Felbow, mforearm, mball, dbiceps, dball,and g.
| ??=0= = |
Expert Answer:
When you lift an object by moving only your forearm the main lifting muscle in your arm is the biceps Suppose the mass of a forearm is 140 If the biceps is connected to the forearm a distance 350 from the elbow how much force must the biceps exert to hold a 1000 ball at the end of the forearm at distance 350 from the elbow with the forearm parallel to the floor How much force must the elbow exert What is the magnitude of the force exerted by the biceps What is the magnitude of the force exerted by the elbow Express your answers in newtons separated by a comma driceps Answer Given mass of the fore arm is M140 kg distance of the bicep ... View the full answer
