Solve the following problems:1. Determine the force in each bar of the truss shown in figure caused by lifting the 120 – lb loadat constant velocity of 8 4. what change in these forces, if any, results from placing the rollersupport at D and the hinge support at A?8A8.P120-lbPaint X lite

The load is lifted at constant velocity, the forces involve is similar to forces under static…

ve the following problems: 1. Determine the force in each bar of the truss shown in figure caused by lifting the 120 - at constant velocity of 8 . What change in these forces, if any, results from placing the support at D and the hinge support at A?

ve the following problems: 1. Determine the force in each bar of the truss shown in figure caused by lifting the 120 - at constant velocity of 8 . What change in these forces, if any, results from placing the support at D and the hinge support at A?

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

Solve the following problems:
1. Determine the force in each bar of the truss shown in figure caused by lifting the 120 – lb load
at constant velocity of 8 4. what change in these forces, if any, results from placing the roller
support at D and the hinge support at A?
8
A
8.
P
120-lb
Paint X lite

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