- Trending Categories
- Data Structure
- Networking
- RDBMS
- Operating System
- Java
- MS Excel
- iOS
- HTML
- CSS
- Android
- Python
- C Programming
- C++
- C#
- MongoDB
- MySQL
- Javascript
- PHP
- Physics
- Chemistry
- Biology
- Mathematics
- English
- Economics
- Psychology
- Social Studies
- Fashion Studies
- Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
A train travels $100\ m$ long moving on a straight level track passes a pole in $5\ s$. Find the time it will take to cross a bridge $500\m$ long.
Here, the length of the train is equal to the distance covered by the train.
So, the distance covered by the train $=100\ m$
Time $=5\ s$
Therefore, speed of the train $=\frac{distance}{time}=\frac{100\ m}{5\ s}$
$=20\ m/s$
Therefore, time taken to cross a bridge $500\ m$ long $=\frac{distance}{speed}$
$=\frac{500}{20}$
$=25\ m/s$
Therefore, the train will take $25\ seconds$ to cross the $500\ m$ long bridge.
Advertisements