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Express Newton's first, second, and third laws.

Fluid Mechanics | 2nd Edition | ISBN: 9780071284219 | Authors: Yunus A. Cengel, John M. Cimbala ISBN: 9780071284219 39

Solution for problem 2P Chapter 6

Fluid Mechanics | 2nd Edition

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Fluid Mechanics | 2nd Edition | ISBN: 9780071284219 | Authors: Yunus A. Cengel, John M. Cimbala

Fluid Mechanics | 2nd Edition

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Problem 2P

Express Newton's first, second, and third laws.

Step-by-Step Solution:
Step 1 of 3

Solution 2P

 Newton's first, second, and third law can be expressed as follows.

Newton’s first law states that a body at rest remains at rest, and a body in motion remains in motion at the same velocity in a straight path when the net force acting on it is zero. Therefore, a body tends to preserve its state of inertia.

Newton’s second law states that the acceleration of a body is proportional to the net force acting on it and is inversely proportional to its mass. For a rigid body of mass  , Newton’s second law is expressed as   

 Where   is the net force acting on the body and is the acceleration of the body under the influence of .

Newton’s second law  can be also be expressed as ==  and can be stated as the rate of change of the momentum of a body is equal to the net force acting on the body.

 Newton’s third law states that when a body exerts a force on a second body, the second body exerts an equal and opposite force on the first. So, if a body A exerts a force on a second body  B, then B simultaneously exerts a force  on A, and the two forces are equal in magnitude and opposite in direction. .  

Step 2 of 3

Chapter 6, Problem 2P is Solved
Step 3 of 3

Textbook: Fluid Mechanics
Edition: 2
Author: Yunus A. Cengel, John M. Cimbala
ISBN: 9780071284219

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Express Newton's first, second, and third laws.