A man holds a 165-N ball in his hand, with the forearm horizontal (see the figure). He can ypport the ball in this position because of the flexor muscle force M, which is applied perpendicular to the forearm. The forearm weighs 18.5 N and has a center of gravity as indicated. Find (a) the magnitude of M and 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 (c) Number Upper arm bone- Elbow joint 0.0510 m 0.0890 mi -0.330 m- Units Units Flexor muscle Units
A man holds a 165-N ball in his hand, with the forearm horizontal (see the figure). He can ypport the ball in this position because of the flexor muscle force M, which is applied perpendicular to the forearm. The forearm weighs 18.5 N and has a center of gravity as indicated. Find (a) the magnitude of M and 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 (c) Number Upper arm bone- Elbow joint 0.0510 m 0.0890 mi -0.330 m- Units Units Flexor muscle Units
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Transcribed Image Text:A man holds a 165-N ball in his hand, with the forearm horizontal (see the figure). He can ypport the ball in this position because of
the flexor muscle force M, which is applied perpendicular to the forearm. The forearm weighs 18.5 N and has a center of gravity as
indicated. Find (a) the magnitude of M and 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
(c) Number
Upper
arm bone-
Elbow
joint
0.0510 m 0.0890 m
-0.330 m-
Units
Units
Flexor muscle
Units
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