0

Guest

Courses New

Two trains A and B 100m and 60m long are moving in opposite direction on the parallel tracks. The speed of shorter is 3 times the larger one. Of the train take 4 seconds to cross each other then find the velocities of the trains

Two trains A and B 100m and 60m long are moving in opposite direction on the parallel tracks. The speed of shorter is 3 times the larger one. Of the train take 4 seconds to cross each other then find the velocities of the trains

Grade:11

1 Answers

Khimraj
3007 Points
5 years ago
let the speed of larger train is v
then speed of shorter train is 3v
then relative velocity = 3v – (-v) = 4v
relative displacement = 100 – (-60) = 160
then time taken 
t = 160/4v = 4
40/v = 4
so v = 10 m/s
then
speed of larger train v = 10m/s
speed of shorter train 3v = 30 m/s
Hope it clears. If  you liike answer then please approve it.

Think You Can Provide A Better Answer ?

Other Related Questions on Mechanics

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More