Physics · 2019
JEE Main · 12 January 2019, Shift 1 · Q3
A passenger train of length 60 m travels at a speed of 80 km/hr. Another freight train of length 120 m travels at a speed of 30 km/hr. The ratio of…
A passenger train of length $\displaystyle 60$ m travels at a speed of $\displaystyle 80$ km/hr. Another freight train of length $\displaystyle 120$ m travels at a speed of $\displaystyle 30$ km/hr. The ratio of times taken by the passenger train to completely cross the freight train when : (i) they are moving in the same direction, and (ii) in the oppposite directions is :
Official answer
(2)
$\displaystyle \frac{11}{5}$
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JEE Main 2019 Physics question, with the answer from NTA’s final answer key. Where our answers come from.