A person working at a drafting board may hold her head as shown in the figure below, requiring muscleaction to support the head. (Assume that FM = 77 N and w = 48 N.)33AThe three major forces acting are shown. Calculate the magnitude in newtons and direction (0) in degreesof the force supplied by the upper vertebrae Fy to hold the head stationary, assuming that this force actsalong a line through the center of mass as do the weight and muscle force.magnitude09degreesN

Let us assume Fm=force by upper vertebrae W=weight Therefore the force in z direction will be,

A person working at a drafting board may hold her head as shown in the figure below, requiring muscle action to support the head. (Assume that FM - 77 N and w = 48 N.) 33 The three major forces acting are shown. Calculate the magnitude in newtons and direction (8) in degre of the force supplied by the upper vertebrae Fy to hold the head stationary, assuming that this force ac along a line through the center of mass as do the weight and muscle force. magnitude Ꮎ degrees N

A person working at a drafting board may hold her head as shown in the figure below, requiring muscle action to support the head. (Assume that FM - 77 N and w = 48 N.) 33 The three major forces acting are shown. Calculate the magnitude in newtons and direction (8) in degre of the force supplied by the upper vertebrae Fy to hold the head stationary, assuming that this force ac along a line through the center of mass as do the weight and muscle force. magnitude Ꮎ degrees N

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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Concept explainers

Rotational Equilibrium And Rotational Dynamics

In physics, the state of balance between the forces and the dynamics of motion is called the equilibrium state. The balance between various forces acting on a system in a rotational motion is called rotational equilibrium or rotational dynamics.

Equilibrium of Forces

The tension created on one body during push or pull is known as force.

Question

A person working at a drafting board may hold her head as shown in the figure below, requiring muscle
action to support the head. (Assume that FM = 77 N and w = 48 N.)
33
A
The three major forces acting are shown. Calculate the magnitude in newtons and direction (0) in degrees
of the force supplied by the upper vertebrae Fy to hold the head stationary, assuming that this force acts
along a line through the center of mass as do the weight and muscle force.
magnitude
0
9
degrees
N

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