A man holds a 180-N ball in his hand, with the forearm horizontal (see the figure). He can support the ball in this posi

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A Man Holds A 180 N Ball In His Hand With The Forearm Horizontal See The Figure He Can Support The Ball In This Posi 1 (42.22 KiB) Viewed 51 times

A man holds a 180-N ball in his hand, with the forearm horizontal (see the figure). He can support the ball in this position because of the flexor muscle force M, which is applied perpendicular to the forearm. The forearm weighs 21.7 N and has a center of gravity as indicated. Find (a) the magnitude of Mand the (b) magnitude and (c) direction (as a positive angle counterclockwise from horizontal) of the force applied by the upper arm bone to the forearm at the elbow joint. (a) Number (b) Number 1224.27450 1022.5745 (c) Number i Upper arm bone- Elbow joint 0.0510 m+ Units N Units N Units - Flexor muscle 0.0890 m -0.330 m- N