Physics - Kinematics Question with Solution | TestHub

Two particles$\mathrm{A}$and$\mathrm{B}$are located at points$\left(0,\mathrm{ }10\sqrt{3}\right)$and$(0, 0)$in$x-y$plane. They start moving simultaneously at the time$t=0 \mathrm{s}$with constant velocities${\overrightarrow{V}}_{\mathrm{A}}=5\mathrm{ }\hat{\mathrm{i}} \mathrm{m} {\mathrm{s}}^{-1}$and${\overrightarrow{V}}_{\mathrm{B}}=-5\sqrt{3}\hat{\mathrm{i}} \mathrm{m} {\mathrm{s}}^{-1}$, respectively. The time when they are closest to each other is found to be$K/2$second. Find$K$. All distances are given in meter.