The biceps brachii, a muscle in the arm, connects the radius, a bone in the forearm, to the scapula in the shoulder (see below). The muscle attaches at two places on the scapula but at only one on the radius. To move or hold the arm in place, the biceps muscle balances the weight of the arm and the force at the elbow joint. The centre of mass of the arm is at 15 cm from the elbow joint. The horizontal force of the elbow joint is 6.5 N when the forearm is held parallel to the ground and the forearm weighs 15.3 N. If the biceps supports the entire weight of the forearm, calculate the necessary force from each branch of the biceps to hold the forearm parallel to the ground and the vertical force at the elbow

The biceps brachii, a muscle in the arm, connects the radius, a bone in the forearm, to the scapula in the shoulder (see below). The muscle attaches at two places on the scapula but at only one on the radius. To move or hold the arm in place, the biceps muscle balances the weight of the arm and the force at the elbow joint. The centre of mass of the arm is at 15 cm from the elbow joint. The horizontal force of the elbow joint is 6.5 N when the forearm is held parallel to the ground and the forearm weighs 15.3 N. If the biceps supports the entire weight of the forearm, calculate the necessary force from each branch of the biceps to hold the forearm parallel to the ground and the vertical force at the elbow

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

1. Momework Statement
The biceps brachii, a muscle in the arm, connects
the radius, a bone in the forearm, to the scapula in
the shoulder (see below). The muscle attaches at
two places on the scapula but at only one on the
radius. To move or hold the arm in place, the
biceps muscle balances the weight of the arm and
the force at the elbow joint. The centre of mass of
the arm is at 15 cm from the elbow joint. The
horizontal force of the elbow joint is 6.5 N when
the forearm is held parallel to the ground and the
forearm weighs 15.3 N. If the biceps supports the
entire weight of the forearm, calculate the
necessary force from each branch of the biceps to
hold the forearm parallel to the ground and the
vertical force at the elbow.
3 cm
30 cm
25 cm

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