Question
Two trains are running in opposite directions with the same speed. If the length of each train is 135 metres and they cross each other in 18 seconds, the speed of each train is(a) $29 \mathrm{~km} / \mathrm{hr}$(b) $35 \mathrm{~km} / \mathrm{hr}$(c) $27 \mathrm{~km} / \mathrm{hr}$(d) None of these
Step 1
Since each train is 135 metres long, the total length when they cross each other is: \[ \text{Total length} = 135 \, \text{m} + 135 \, \text{m} = 270 \, \text{m} \] Show more…
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A train $A$ which is $120 \mathrm{~m}$ long is running with velocity $20 \mathrm{~m} / \mathrm{s}$ while train $B$ which is $130 \mathrm{~m}$ long is running in opposite direction with velocity $30 \mathrm{~m} / \mathrm{s}$. What is the time taken by train $B$ to cross the train A? (a) $5 \mathrm{~s}$ (b) $25 \mathrm{~s}$ (c) $10 \mathrm{~s}$ (d) $100 \mathrm{~s}$
A $120 \mathrm{~m}$ long train is moving in a direction with speed $20 \mathrm{~m} / \mathrm{s}$. A train $B$ moving with $30 \mathrm{~m} / \mathrm{s}$ in the opposite direction and $130 \mathrm{~m}$ long crosses the first train in a time? (a) $6 \mathrm{sec}$ (b) $36 \mathrm{sec}$ (c) $38 \mathrm{sec}$ (d) None of these
KINEMATICS
Motion in a Straight Line
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