A car moves from point $X$ to $Y$ with a uniform speed $v_{1}$ and returns to $X$ with a uniform spe

Question

A car moves from point $X$ to $Y$ with a uniform speed $v_{1}$ and returns to $X$ with a uniform speed $v_{2}$. The average velocity for this round trip is

Professor PC Thomas Classes · Answer

(a) : Average velocity $=\frac{	ext{net displacement}}{	ext{total time taken}}$. \ Since the car returns to its starting point $X$, the net displacement for the round trip is zero. \ Therefore, average velocity $= \frac{0}{t} = 0$.