Example 3.1 An object of 40 kg mass falls freely under the influence of gravity from an elevation of 100 m above the earth's surface., The initial ve- locity is directed downward with a magnitude of 100 m/s. Ignoring the ef- fect of air resistance, what is the magnitude of the velocity, in m/s, of the object just before it strikes the earth? The acceleration of gravity is g 9.81 m/s. %3D

Example 3.1 An object of 40 kg mass falls freely under the influence of gravity from an elevation of 100 m above the earth's surface., The initial ve- locity is directed downward with a magnitude of 100 m/s. Ignoring the ef- fect of air resistance, what is the magnitude of the velocity, in m/s, of the object just before it strikes the earth? The acceleration of gravity is g 9.81 m/s. %3D

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Fluid Kinematics

The branch of science that deals with objects which are either in motion or stationary are studied under the branch of classical mechanics. Fluid mechanics is a subcategory of classical mechanics that deals with the behavior of fluids at rest (fluid statics) or in motion (posing some velocity). In fluid kinematics, studies focus on the associated motion of fluid particles or groups of particles, and its associated parameters like displacements, velocity, and acceleration without concerning about the forces that caused the motion. All the laws of classical mechanics are applied in the study of fluid kinematics.

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Example 3.1 An object of 40 kg mass falls freely under the influence of
gravity from an elevation of 100 m above the earth's surface. The initial ve-
locity is directed downward with a magnitude of 100 m/s. Ignoring the ef-
fect of air resistance, what is the magnitude of the velocity, in m/s, of the
object just before it strikes the earth? The acceleration of gravity is g =
9.81 m/s.

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