A passenger sitting in a train A moving at … observes another train … moving in the opposite direction for …. If the velocity of the train B is …, then length of train B is:

Option D. To find the length of train B, we first need to determine the relative velocity between train A and train B. Since they are moving in opposite directions, their velocities add up:

Motion in a Straight Line

JEE Main 2023 · 13 Apr, Evening shift · Q7877

PhysicsMedium65×since 2002Q7877

A passenger sitting in a train A moving at

90 \mathrm{~km} / \mathrm{h}

observes another train

\mathrm{B}

moving in the opposite direction for

8 \mathrm{~s}

. If the velocity of the train B is

54 \mathrm{~km} / \mathrm{h}

, then length of train B is:

Motion in a Straight Line

JEE Main 2023 · 13 Apr, Evening shift · Q7877

PhysicsMedium65×since 2002Q7877

A passenger sitting in a train A moving at

90 \mathrm{~km} / \mathrm{h}

observes another train

\mathrm{B}

moving in the opposite direction for

8 \mathrm{~s}

. If the velocity of the train B is

54 \mathrm{~km} / \mathrm{h}

, then length of train B is:

Motion in a Straight Line

More on Motion in a Straight Line

Motion in a Straight Line

More on Motion in a Straight Line