Calculating Parallel Circuits (IR1, VR1, IT,) etc

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Newton's second law states that the rate of change of momentum of an object is directly proportional to the net force acting on it. In simpler terms, if a net force is applied, the object will accelerate in the direction of that force. This contrasts with Newton's first law, which indicates that an object in motion will continue in a straight line at constant velocity unless acted upon by an external force. Understanding this distinction is crucial for grasping the principles of motion and force. The discussion highlights the importance of accurately interpreting these foundational laws of physics.
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Hard Stuff

Can anyone explain to me what Newtons 2nd law means?
 
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?? Neither "hard stuff" nor "Calculating parallel circuits"!

Newton's second law means exactly what it says: If a moving object has absolutely no forces acting on it then it will continue to move in a straight line at constant velocity".

You could say that "means" that only a force will change the speed or direction of motion of a body.
 
HallsofIvy said:
?? Neither "hard stuff" nor "Calculating parallel circuits"!

Newton's second law means exactly what it says: If a moving object has absolutely no forces acting on it then it will continue to move in a straight line at constant velocity".

...er ...Isn't that Newton's First Law?

The Second law states that the rate of change of momentum of a body is directly proportional to the net force applied to it. Or in simple terms, if there is a net force acting, a body will accelerate.
 

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