4-72. Determine the magnitude of the couple forces F so that the resultant couple moment on the crank is zero. 30 mm5 mmforces F sos zero.--F150 N125 mm303030°150 N125mm100mm459301450100mmat is not on its line of action, it will create the sameent is also applied to the body. The couple moment isabout point P.F.B.

Answered: Image /qna-images/answer/b99a76c1-79e5-4f3d-b168-1ffe737286cb.jpg

Answered: prces F so zero. 150 N -F 125 mm 30 30…

prces F so zero. 150 N -F 125 mm 30 30 130° 150 N 125mm 100mm 45 30 450 100mm F is not on its line of action, it will create the same

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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Concept explainers

System of Forces

A force is an external influence or agent that changes the state of a system. According to Newton's second law, the force applied to a body is proportional to the change in momentum of a body. Hence, whenever a force is applied to a body, its momentum changes. If the body is at rest, under the action of force, its state of rest changes to motion. In other words, the magnitude of the momentum of the body changes from zero to a measurable value. Similarly, if the body possesses some initial velocity, it has some associated momentum, the effect of force can cause the body to halt or come to rest, that is, the momentum reduces to zero.

Question

4-72. Determine the magnitude of the couple forces F so that the resultant couple moment on the crank is zero.

30 mm
5 mm
forces F so
s zero.
--F
150 N
125 mm
30
30
30°
150 N
125mm
100mm
459
30
1450
100mm
at is not on its line of action, it will create the same
ent is also applied to the body. The couple moment is
about point P.
F.
B.

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