Answered: 9N B 50 Imm 290 mm

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

Figure (a) is a diagram of the bones and biceps muscle of a person's arm supporting a mass. Tension in the biceps muscle holds the forearm in the horizontal position, as illustrated in the simple mechanical model in Fig. (b). The weight of the forearm is 9 N, and the mass = 2 kg a) Determine the tension in the biceps muscle AB. b) Determine the magnitude of the force exerted on the upper arm by the forearm at the elbow joint C.

(a)
m
-200 mm
9N
B
(b)
50
Imm
-150 mm
290
mm

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