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Results tagged with newtonian-mechanics
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user 53037
Newtonian mechanics discusses the movement of classical bodies under the influence of forces by applying Newton’s three laws. For more general concepts, use [classical-mechanics]. For Newton’s description of gravity, use [newtonian-gravity].
4
votes
Is a string taut if the tension is zero?
The tension being zero is right at the moment of transition between the string being taut and the string being slack; usually in "particle on a string" problems you have to find the minimum or maximum …
0
votes
Appearance of the Jerk Term in Dynamics of Mass-Spring-Damper System
I'm not sure where the term with the third derivative came from; taking the equilibrium point of our system to be $x=0$ we find the force due to the leftmost spring is given by:
\begin{equation}
F_{\t …
1
vote
What is the time period of an oscillator with varying spring constant?
From Newton's second law we have (whether $k$ is constant or not) that:
\begin{equation}
m\ddot{x}+kx=0
\end{equation}
The only difference is whether or not $k$ is a function of $t$ or not. If it is a …
0
votes
Vertical circular motion: minimum velocity
A tension less than zero isn't really physical; this is the point where the string stops being taught and the object doesn't make a complete circle. Therefore, when finding the minimum velocity for an …