एखादी वस्तू x = 0 m पासून विश्रांतीपासून सुरू होते आणि x-अक्षाच्या बाजूने 1.6 m/s2 च्या स्थिर प्रवेगसह हलते. x = 12.8 m ते x = 20.0 m या प्रवासादरम्यान, त्याचा सरासरी वेग __________ असेल.

This question was previously asked in
RRB ALP Fitter 23 Jan 2019 Official Paper (Shift 3)
View all RRB ALP Papers >
  1. 7.2 m/s
  2. 3.6 m/s
  3. 8.8 m/s
  4. 2.4 m/s

Answer (Detailed Solution Below)

Option 1 : 7.2 m/s
Free
General Science for All Railway Exams Mock Test
2.2 Lakh Users
20 Questions 20 Marks 15 Mins

Detailed Solution

Download Solution PDF

संकल्पना:

गतीचे समीकरण:

  • किनेमॅटिक्सच्या गतीची समीकरणे वस्तूच्या गतीच्या मूलभूत संकल्पनेचे वर्णन करतात जसे की एखाद्या वस्तूची स्थिती, वेग किंवा वेगवेगळ्या वेळी प्रवेग.
  • गतीची ही तीन समीकरणे 1D, 2D आणि 3D मधील वस्तूची गती नियंत्रित करतात.
  • तीन समीकरणे: v = u + at, s = ut + 0.5 at2, 2as = v2 - u2
  • येथे, u = प्रारंभिक वेग, v = अंतिम वेग, s = विस्थापन, t = वेळ
  • गुरुत्वाकर्षणाच्या प्रभावाखाली, त्वरण a ची जागा गुरुत्वाकर्षणामुळे प्रवेगने घेतली जाते.

गणना:

Given,

Initial velocity, u = 0 m/s, Acceleration, a = 1.6 m/s2

From the second equation of motion,

s = ut +0.5 at2

12.8 = 0.8 t12

\(t^2=\frac{12.8}{0.8}=16\)

t1 = 4 sec.

For s = 20

12.8 = 0 × t2 + 0.5 × 1.6 t22

t2 = 5 sec.

The average velocity can be calculated as,

\(v_{avg}=\frac{total\, \, displacement}{total\, \, time\, duration}\)

\(v_{avg}=\frac{20 - 12.8}{5 - 4}=7.2m/s\)

Hence, What is its average velocity 7.2m/s.

Latest RRB ALP Updates

Last updated on Jul 22, 2025

-> The Railway Recruitment Board has scheduled the RRB ALP Computer-based exam for 15th July 2025. Candidates can check out the Exam schedule PDF in the article.

-> RRB has also postponed the examination of the RRB ALP CBAT Exam of Ranchi (Venue Code 33998 – iCube Digital Zone, Ranchi) due to some technical issues.

-> SSC Selection Post Phase 13 Admit Card 2025 has been released @ssc.gov.in

-> TS TET Result 2025 has been released @tgtet.aptonline.in.

-> TNPSC Group 4 Answer Key 2025 has been released at tnpsc.gov.in

-> There are total number of 45449 Applications received for RRB Ranchi against CEN No. 01/2024 (ALP).


-> The Railway Recruitment Board (RRB) has released the official RRB ALP Notification 2025 to fill 9,970 Assistant Loco Pilot posts.

-> The official RRB ALP Recruitment 2025 provides an overview of the vacancy, exam date, selection process, eligibility criteria and many more.

->The candidates must have passed 10th with ITI or Diploma to be eligible for this post. 

->The RRB Assistant Loco Pilot selection process comprises CBT I, CBT II, Computer Based Aptitude Test (CBAT), Document Verification, and Medical Examination.

-> This year, lakhs of aspiring candidates will take part in the recruitment process for this opportunity in Indian Railways. 

-> Serious aspirants should prepare for the exam with RRB ALP Previous Year Papers.

-> Attempt RRB ALP GK & Reasoning Free Mock Tests and RRB ALP Current Affairs Free Mock Tests here

-> Bihar Police Driver Vacancy 2025 has been released @csbc.bihar.gov.in.

->UGC NET Final Asnwer Key 2025 June has been released by NTA on its official site

More Average velocity and average speed Questions

More Motion in a Straight Line Questions

Get Free Access Now
Hot Links: teen patti apk teen patti gold real cash teen patti master gold download teen patti master downloadable content