Treat the upper limb as one segment with a centre of mass (d2) 36.0 cm from the shoulder joint. The upper limb has a mass of 4.3 kg. The skeletal muscle illustrated is maintaining the static position of the upper limb. The muscle inserts and has a moment arm (d1) 17.6 cm from the shoulder joint. The upper limb is not moving. A vector illustrates the direction of force generated by the muscle. Determine the vertical component of the force created by the muscle in order to maintain this static position.

Treat the upper limb as one segment with a centre of mass (d2) 36.0 cm from the shoulder joint. The upper limb has a mass of 4.3 kg. The skeletal muscle illustrated is maintaining the static position of the upper limb. The muscle inserts and has a moment arm (d1) 17.6 cm from the shoulder joint. The upper limb is not moving. A vector illustrates the direction of force generated by the muscle. Determine the vertical component of the force created by the muscle in order to maintain this static position.

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter10: Fixed-axis Rotation

Section: Chapter Questions

Problem 73P: (a) When opening a door, you push on it perpendicularly with a force of 55.0 N at a distance of...

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