एक ट्रक शुरू में विराम अवस्था से 7 सेकंड में 70 m की दूरी तय करता है और यह गति उसी तरह जारी रहती है। यदि निकाय एकसमान त्वरित गति में है तो त्वरण (a) कितना होगा? (लगभग)

  1. 0 m/s2
  2. 3 m/s2
  3. 5 m/s2
  4. 8 m/s2

Answer (Detailed Solution Below)

Option 2 : 3 m/s2
Free
RRB Group D Full Test 1
2.7 Lakh Users
100 Questions 100 Marks 90 Mins

Detailed Solution

Download Solution PDF

अवधारणा:

  • गति के समीकरणों का उपयोग निकाय की गति को वर्णित करने के लिए किया जाता है और यह इस प्रकार है-

\(S = ut+ \frac{1}{2}a t^{2}\)

V = u + at

V2 = U+ 2as

जहाँ S = विस्थापन, t = समय a = त्वरण, V = अंतिम वेग,U = प्रारंभिक वेग

गणना:

दिया गया है: S = 70 m, t = 7 सेकंड u = 0m/s

  • विस्थापन, प्रारंभिक वेग और समय में सम्बन्ध स्थापित करने वाला गति का समीकरण है-

\(⇒ S = ut+ \frac{1}{2}a t^{2}\)

दिए गए मानों के प्रतिस्थापन पर उपरोक्त समीकरण होगा-

\(\Rightarrow 70 = 0\times 7+ \frac{1}{2}a \times 7^{2}\)

\(\Rightarrow a = \frac{70\times 2}{7\times 7} = \frac{20}{7} = 2.85m/s^{2}\)

  • इसलिए, विकल्प 2 उत्तर है।
Latest RRB Group D Updates

Last updated on Jun 2, 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 Kinematic equations for uniformly accelerated motion Questions

More Motion in a Straight Line Questions

Get Free Access Now
Hot Links: teen patti neta teen patti master online teen patti gold downloadable content teen patti online game teen patti glory