Question
Download Solution PDFबस 5 सेकंदात तिचा वेग 80 किमी/तास वरून 60 किमी/ताशी कमी करते. बसचा प्रवेग किती आहे?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFसंकल्पना :
- कायनेमॅटिक्सचे समीकरण : हे u, v, a, t आणि s मधील एकसमान प्रवेग असलेल्या कणासाठी विविध संबंध आहेत जेथे चिन्ह वापरले जातात:
- गतीची समीकरणे अशी लिहिता येतात
V = U + at
\(s =ut+\frac{1}{2}{at^{2}}\)
V 2 =U 2 + 2as
जेथे u = कणाचा प्रारंभिक वेग t = 0 सेकंद
v = अंतिम वेग t सेकंदाच्या वेळी
a = कणाचा प्रवेग
s = वेळेत प्रवास केलेले अंतर t सेकंद
स्पष्टीकरण :
दिलेले - प्रारंभिक वेग (u) = 80 किमी/तास = 22.22 मीटर/सेकंद, अंतिम वेग (v) = 60 किमी/तास = 16.67 मीटर/सेकंद, आणि वेळ (t) = 5 सेकंद.
- गतीच्या पहिल्या नियमानुसार
⇒ v = u + at
⇒16.67 = 22.22 + (a × 5)
\(\Rightarrow a = \frac{{16.67 - 22.22}}{5} = - \frac{{5.55}}{5} = - 1.11\;\, m/s^2\)
- ऋणात्मक चिन्ह दाखवते की बसचा वेग 1.11 मीटर/सेकंद2 या वेगाने कमी होत आहे.
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.