Physics - Kinematics Question with Solution | TestHub

Train$\mathrm{A}$and train$\mathrm{B}$are running on parallel tracks in the opposite directions with speed of$36 \mathrm{km} {\mathrm{hour}}^{-1}$and$72 \mathrm{km} {\mathrm{hour}}^{-1}$, respectively. A person is walking in train$\mathrm{A}$in the direction opposite to its motion with a speed of$1.8 \mathrm{km} {\mathrm{hour}}^{-1}$. Speed$\left(\mathrm{in} \mathrm{m} {\mathrm{s}}^{-1}\right)$of this person as observed from train$\mathrm{B}$will be close to: (take the distance between the tracks as negligible)