27. A man holds a ball in his hand with the forearm horizontal as shown in diagram. He can support the ball in this posi

[answerhappygod]

27 A Man Holds A Ball In His Hand With The Forearm Horizontal As Shown In Diagram He Can Support The Ball In This Posi 1 (31.36 KiB) Viewed 57 times

27. A man holds a ball in his hand with the forearm horizontal as shown in diagram. He can support the ball in this position because of the biceps muscle force FB, which has a magnitude of 512 N and is applied perpendicular to the forearm. If the mass of the hand and forearm together is 3 kg and its weight acts at a point 15 cm from the elbow joint, what is the weight of the ball? A) 49 N B) 21 N C) 4 N D) 10 N E) 39 N 4.5 cm 15 cm Triceps Biceps Radius Ulna 38 cm