Two boys are standing at the ends $A$ and $B$ of a ground where $A B=a$. The boy at $B$ starts runni

Question

Two boys are standing at the ends $A$ and $B$ of a ground where $A B=a$. The boy at $B$ starts running in a direction perpendicular to $A B$ with velocity $v_{1}$. The boy at $A$ starts running simultaneously with velocity $v$ and catches the other in a time $t$, where $t$ is\

Professor PC Thomas Classes · Answer

(d) : $t=\frac{a}{v^{\prime}}=\frac{a}{\sqrt{v^{2}-v_{1}^{2}}}$\