Physics

Problem

Which of the following expressions gives the instantaneous velocity

v

of a particle at time

t

? a)

v = \dfrac{\Delta x}{\Delta t}

v = \displaystyle \lim_{\Delta t \to 0} \dfrac{\Delta x}{\Delta t}

v = \displaystyle \lim_{\Delta x \to 0} \dfrac{\Delta x}{\Delta t}

v = \displaystyle \lim_{\Delta t \to 0} \dfrac{\Delta s}{\Delta t}