Question
Download Solution PDFA train running at 120 km/hr crosses a pole in 9 seconds. What is the length of the train?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
Train running at 120 km/hr and crosses a pole in 9 seconds
Formula Used:
speed of train = distance/time
Distance = length of train
Speed of the train is given in km/h while time is given in seconds so first we need to convert speed into m/s because length has been asked in m
To convert speed km/h into m/s multiply given speed with 5/18 and
to convert speed m/s to km/h multiply given speed with 18/5
Calculation:
⇒ Speed in m/s = 120 km/hr × (5/18) = (100/3) m/s
⇒ Distance = (100/3) × 9 = 300 m
∴ Length of train = 300 m
Last updated on Jun 23, 2025
-> RRB NTPC Exam Analysis 2025 is LIVE now. All the candidates appearing for the RRB NTPC Exam 2025 can check the complete exam analysis to strategize their preparation accordingly.
-> The RRB NTPC Admit Card 2025 has been released on its official website.
-> Candidates who will appear for the RRB NTPC Exam can check their RRB NTPC Time Table 2025 from here.
-> The RRB NTPC CBT 1 Exam is scheduled from 5th June to 24th June 2025 as per the revised tentative exam schedule.
-> The RRB NTPC 2025 Notification has been released for a total of 11558 vacancies.
-> A total of 3445 Vacancies have been announced for Undergraduate posts like Commercial Cum Ticket Clerk, Accounts Clerk Cum Typist, Junior Clerk cum Typist & Trains Clerk.
-> A total of 8114 vacancies are announced for Graduate-level posts in the Non-Technical Popular Categories (NTPC) such as Junior Clerk cum Typist, Accounts Clerk cum Typist, Station Master, etc.
-> Prepare for the exam using RRB NTPC Previous Year Papers.