Train A is moving along |CoordinationCompoundsJEEMAIN2023

JEE MAIN 2024

01-02-2024 S2

Question

\Train A is moving along two parallel rail tracks towards north with speed 72 km/h and train B is moving towards south with speed 108 km/h. Velocity of train B with respect to A and velocity of ground with respect to B are $\left(\right.$ in $\left.\mathrm{ms}^{-1}\right)$:

Select the correct option:

-30 and 50

-50 and -30

-50 and 30

50 and -30

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

$$ \begin{aligned} V_A & =20 \mathrm{~m} / \mathrm{s} \\ V_B & =-30 \mathrm{~m} / \mathrm{s} \end{aligned} $$ Velocity of B w.r.t. A $$ \mathrm{V}_{\mathrm{B} / \mathrm{A}}=-50 \mathrm{~m} / \mathrm{s} $$ Velocity of ground w.r.t. B $$ \mathrm{V}_{\mathrm{G} / \mathrm{B}}=30 \mathrm{~m} / \mathrm{s} $$

Question Tags

JEE Main

Physics

Easy

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