The resultant of the three forces is zero. Suppose that F2 = 250 lbDetermine the magnitude of F3?Problem 2.68The resultant of the three forces is zero. Suppose thatF2= 250 lb. (Figure 1)Figure 1of 1z30⁰-40°F₂F3<F₁ = 180 lb

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The resultant of the three forces is zero. Suppose that F2 = 250 lb Determine the magnitude of F3? Problem 2.68

Principles of Foundation Engineering (MindTap Course List)

8th Edition

ISBN:9781305081550

Author:Braja M. Das

Publisher:Braja M. Das

Chapter14: Sheet-pile Walls

Section: Chapter Questions

Problem 14.9P

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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

The resultant of the three forces is zero. Suppose that F2 = 250 lb
Determine the magnitude of F3?
Problem 2.68
The resultant of the three forces is zero. Suppose that
F2= 250 lb. (Figure 1)
Figure 1
of 1
z
30⁰
-40°
F₂
F3
<
F₁ = 180 lb

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