Question
Download Solution PDFकिसी कण का त्वरण a = 10 - x द्वारा व्यक्त किया गया है। कण प्रारंभ (समय = 0) में x = 0 पर प्रारंभिक वेग के बिना गति करता है। जब त्वरण शून्य हो जाता है, तब कण का वेग क्या होगा?
Answer (Detailed Solution Below)
Detailed Solution
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हम चर त्वरण वाले कण की गति का विश्लेषण करते हैं ताकि यह निर्धारित किया जा सके कि त्वरण शून्य होने पर उसका वेग क्या होगा।
दिया गया है:
- त्वरण फलन: \( a = 10 - x \)
- प्रारंभिक स्थिति: \( t = 0 , ~ x = 0 ,~ और~ वेग ~v = 0 \) पर
चरण 1: त्वरण शून्य होने पर स्थिति ज्ञात कीजिए
\( a = 0\) रखें
\( 10 - x = 0 \)
\( x = 10 \, \text{m} \)
चरण 2: त्वरण को वेग और स्थिति से संबंधित करें
श्रृंखला नियम का उपयोग करके, त्वरण को इस प्रकार व्यक्त किया जा सकता है:
\( a = \frac{dv}{dt} = v \frac{dv}{dx} = 10 - x \)
चरों को अलग करें और समाकलन करें:
\( v \, dv = (10 - x) \, dx \)
चरण 3: दोनों पक्षों का समाकलन करें
\( \int_{0}^{v} v \, dv = \int_{0}^{10} (10 - x) \, dx \)
\( \frac{v^2}{2} \bigg|_{0}^{v} = 10x - \frac{x^2}{2} \bigg|_{0}^{10} \)
\( \frac{v^2}{2} = 100 - 50 = 50 \)
\( v^2 = 100 \)
\( v = 10 \, \text{m/s} \)
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