Conservation of Linear Momentum The total quantity of motion contained in a body is called linear momentum . It is denoted by $\vec{P}$ and defined as the product of mass and velocity of the body. For a body of mass $m$ and velocity $v$, its lin…
Gravity and Gravitation Central Force A central force between two particles is one which is directed along the line joining the two particles and whose magnitude is a function of the distance between them. If one particle is fixed in its posi…
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