किरण एका 90 मीटर लांबीच्या पूलात पोहतो. तो दोन मिनिटांत एका टोकापासून दुसऱ्या टोकापर्यंत पोहून व परत त्याच सरळ मार्गाने दोनदा परत येऊन 360 मीटर पोहतो. तर किरणचा सरासरी वेग शोधा.

This question was previously asked in
RRC Group D Previous Paper 33 (Held On: 3 Oct 2018 Shift 2)
View all RRB Group D Papers >
  1. 4 मीटर सेकंद-1
  2. 5 मीटर सेकंद-1
  3. मीटर सेकंद-1
  4. 0 मीटर सेकंद-1

Answer (Detailed Solution Below)

Option 4 : 0 मीटर सेकंद-1
Free
RRB Group D Full Test 1
100 Qs. 100 Marks 90 Mins

Detailed Solution

Download Solution PDF

दिल्याप्रमाणे,

किरणला 360 मीटर अंतर कापण्यास लागलेला वेळ = 2 मिनिटे

संकल्पना:

सरासरी गति = एकूण अंतर/एकूण वेळ

सरासरी वेग = विस्थापन/घेतलेला वेळ

जेव्हा, विस्थापन = सुरवातीचे टोक व शेवटचे टोक यातले अंतर

गणना:

∵ किरण एका टोकापासून दुसऱ्या टोकापर्यंत पोहतो आणि पुन्हा सुरुवातीच्या टोकाकडे येतो.

⇒ विस्थापन = 90 – 90 + 90 – 90 = 0 मीटर

1 मिनिट = 60 सेकंद

∴ किरणचा सरसरी वेग = 0/120 = 0 मीसे-1

Latest RRB Group D Updates

Last updated on Jun 30, 2025

-> The RRB NTPC Admit Card 2025 has been released on 1st June 2025 on the official website.

-> The RRB Group D Exam Date will be soon announce on the official website. Candidates can check it through here about the exam schedule, admit card, shift timings, exam patten and many more.

-> A total of 1,08,22,423 applications have been received for the RRB Group D Exam 2025. 

-> The RRB Group D Recruitment 2025 Notification was released for 32438 vacancies of various level 1 posts like Assistant Pointsman, Track Maintainer (Grade-IV), Assistant, S&T, etc.

-> The minimum educational qualification for RRB Group D Recruitment (Level-1 posts) has been updated to have at least a 10th pass, ITI, or an equivalent qualification, or a National Apprenticeship Certificate (NAC) granted by the NCVT.

-> This is an excellent opportunity for 10th-pass candidates with ITI qualifications as they are eligible for these posts.

-> The selection of the candidates is based on the CBT, Physical Test, and Document Verification.

-> Prepare for the exam with RRB Group D Previous Year Papers.

More Motion in Two and Three Dimensions Questions

Hot Links: teen patti game - 3patti poker teen patti bliss teen patti winner