Answered: A box of weight 100 kN shown lifted…

A box of weight 100 kN shown lifted without swinging. If all the forces are coplanar, the magnitude and direction (e) of force F w.r.t. x axis is

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

A box of weight 100 kN shown in the figure to be
lifted without swinging. If all the forces are
coplanar, the magnitude and direction (e) of force
F w.r.t. x axis is
90 kN
40 kN
F
45°
-▶X dir
30°
100 KN
Ꮎ

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