Write an expression for ? ? about the elbow. express your answer in terms of some or all of the variables fbiceps, felbow, mforearm, mball, dbiceps, dball, and g.

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 1.10kg . If the biceps is connected to the forearm a distance dbiceps = 2.50cm from the elbow, how much force Fbiceps must the biceps exert to hold a 800g ball at the end of the forearm at distance dball = 37.0cm from the elbow, with the forearm parallel to the floor? How much force Felbow must the elbow exert