badge image

Enroll For Free Now & Improve Your Performance.

×
User Icon
User Icon
User Icon
User Icon
User Icon

Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping
Menu
Grade: 11

                        

Two trains each of length 100 m moving parallel towards each other at speed 72km/h and 36km/h respectively. In how much time will they cross each other

5 years ago

Answers : (2)

Latika Leekha
askIITians Faculty
165 Points
							Hello student,
Both the trains are of lenght 100m.
Hence, total distance = 100 + 100 = 200 m
Relative speeds = 72 + 36 = 108 km/h = 108. 1000/ 3600 m/s
= 30 m /s
Hence, time taken = Distance/ Speed
= 200/ 30
= 6.67 sec
5 years ago
vansh chaudhary
36 Points
							
since the question states that train are running towards eah other that means their relative speed will be diffrence b/w them.
hence, relative speed = 72-36= 36 km/hr = 36 *(5/18) = 10m/sec
now time taken= dist/speed
200/10
​=20 secs
2 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies


Course Features

  • 101 Video Lectures
  • Revision Notes
  • Previous Year Papers
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Test paper with Video Solution


Course Features

  • 110 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details