JEE PYQ: Motion In One Dimension Question 13
Question 13 - 2020 (02 Sep Shift 1)
Train $A$ and train $B$ are running on parallel tracks in the opposite directions with speeds of 36 km/hour and 72 km/hour, respectively. A person is walking in train $A$ in the direction opposite to its motion with a speed of 1.8 km/hour. Speed (in ms$^{-1}$) of this person as observed from train $B$ will be close to: (take the distance between the tracks as negligible)
(1) 29.5 ms$^{-1}$
(2) 28.5 ms$^{-1}$
(3) 31.5 ms$^{-1}$
(4) 30.5 ms$^{-1}$
BETA
