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Two cars A and B are moving in opposite directions with the velocity of 20m/s and 6m/s respectively Calculate the relative of car A with respect to car B If they move in the same velocity what will be the relative velocity of CarA with respect to Car B |
Answer» <html><body><p><strong>Answer:</strong></p><p>Here also <a href="https://interviewquestions.tuteehub.com/tag/let-11597" style="font-weight:bold;" target="_blank" title="Click to know more about LET">LET</a> <a href="https://interviewquestions.tuteehub.com/tag/us-718298" style="font-weight:bold;" target="_blank" title="Click to know more about US">US</a> assume the right direction is positive, then the <a href="https://interviewquestions.tuteehub.com/tag/left-1070879" style="font-weight:bold;" target="_blank" title="Click to know more about LEFT">LEFT</a> direction will be negative.</p><p>Given:</p><p>v</p><p>A</p><p>=</p><p>−15ms−1</p><p>,</p><p>v</p><p>B</p><p>=</p><p>20ms−1</p><p></p><p>Relative velocity of B w.r.t A:</p><p>v</p><p>B</p><p>/</p><p>A</p><p>=</p><p>v</p><p>B</p><p>−</p><p>v</p><p>A</p><p>=</p><p>20−</p><p>(−15)=</p><p>35ms</p><p>−1</p><p>(Positive sign indicates that this relative velocity is in right direction.)</p><p>Relative velocity of A w.r.t B:</p><p>v</p><p>A</p><p>/</p><p>B</p><p>=</p><p>v</p><p>A</p><p>−</p><p>v</p><p>B</p><p>=</p><p>−15−</p><p>20=</p><p>−35ms</p><p>−1</p><p>(Negative sign indicates that this relative velocity is in backward direction.)</p><p>Here the separation between A and B is <a href="https://interviewquestions.tuteehub.com/tag/increasing-1040633" style="font-weight:bold;" target="_blank" title="Click to know more about INCREASING">INCREASING</a> with time, <a href="https://interviewquestions.tuteehub.com/tag/hence-484344" style="font-weight:bold;" target="_blank" title="Click to know more about HENCE">HENCE</a> the velocity of separation is</p><p>35ms</p><p>−1</p><p>.</p><p></p></body></html> | |