Physics

Problem

Which of the following relations correctly gives the net force

\vec F

acting on a body in terms of its linear momentum

\vec p

when the mass remains constant? a)

\vec F = \dfrac{\vec p}{t}

\vec F = \dfrac{d\vec p}{dt}

\vec F = \dfrac{\Delta \vec p}{\Delta t}

\vec F = \dfrac{2\,\Delta \vec p}{\Delta t}