Difference between revisions of "Momentum"
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<math>\vec{p}=m \vec{v}</math> | <math>\vec{p}=m \vec{v}</math> | ||
| − | The central importance of momentum is due Newton's second law which states or rather defines Force <math>\vec{F}</math> acting on a body to be equal to it's rate of change of momentum.That is if <math>\vec{F}</math> is the net force acting on a body then we have | + | |
| − | <math>\boxed{\vec{F}=\frac{d \vec{p}}{dt}}</math> | + | |
| + | The central importance of momentum is due Newton's second law which states or rather defines Force <math>\vec{F}</math> acting on a body to be equal to it's rate of change of momentum.That is if <math>\vec{F}</math> is the net force acting on a body then we have | ||
| + | |||
| + | <math>\boxed{\vec{F}=\frac{d \vec{p}}{dt}}</math> | ||
| + | |||
| + | |||
This means if a body moves such that it's momentum vector remains invariant with time then we can conclude that there is no net Force acting on it | This means if a body moves such that it's momentum vector remains invariant with time then we can conclude that there is no net Force acting on it | ||
[[Category:Physics]] | [[Category:Physics]] | ||
Revision as of 08:50, 20 February 2008
Momentum is the measure of 'how' much motion a body posses and is of prime importance to Mechanics,
Mathematically if we have a body of mass 
moving with velocity 
then it's momentum 
is defined as
The central importance of momentum is due Newton's second law which states or rather defines Force 
acting on a body to be equal to it's rate of change of momentum.That is if is the net force acting on a body then we have
This means if a body moves such that it's momentum vector remains invariant with time then we can conclude that there is no net Force acting on it
