Question
Download Solution PDFएक वस्तु विराम से x = 0 मीटर से शुरू होती है और x-अक्ष के साथ 3 m/s2 के नियत त्वरण के साथ चलती है। इसकी यात्रा के दौरान x = 13.5 m से x = 54 m तक, इसका औसत वेग है:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFसही उत्तर 13.5 m/s है।
Key Points
- दिया गया है:
- वस्तु का त्वरण, a = 3 m/s²
- तय की गई दूरी, d1 = 13.5 m और d2 = 54 m
- ज्ञात करना है:
- औसत वेग = V
- हल:
- V की गणना करने के लिए, प्रयुक्त सूत्र:
- v2 - u2 = 2 as
- गति समीकरण का तीसरा नियम यहाँ, v अंतिम वेग है, u प्रारंभिक वेग अर्थात u = 0 m/s है, a त्वरण है, s तय की गई दूरी है।
- औसत वेग, V = (d1 पर वेग + d2 पर वेग)/2
- V = (v1 + v2)/2
- गति समीकरण सूत्र के तीसरे नियम को लागू करने पर:
- v1 के लिए:
- v12 - u2 = 2 x a x d1
- v12 - 02 = 2 x 3 x 13.5
- v12 = 81
- v1 = √81 = 9
- v1 = 9 m/s
- v2 के लिए:
- v22 - u2 = 2 x a x d2
- v22 - 02 = 2 x 3 x 54
- v22 = 324
- v2 = √324 = 18
- v2 = 18 m/s
- v1 और v2 का मान समीकरण 1 में रखने पर:
- V = (9 + 18)/2 = 27/2 = 13.5 V = 13.5 m/s
अतः वस्तु की औसत गति 13.5 m/s है।
Last updated on Jul 19, 2025
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