The radius of circle, the period of revolution T , initial position and sense of revolution are indicated in the figure. x-projection of the radius vector of rotating particle P  is

 

Option 1 - <p><span class="mathml" contenteditable="false"> <math> <mi>x</mi> <mfenced separators="|"> <mrow> <mrow> <mi>t</mi> </mrow> </mrow> </mfenced> <mo>=</mo> <mn>5</mn> <mrow> <mrow> <mi mathvariant="normal">sin</mi> </mrow> <mo>⁡</mo> <mrow> <mfenced separators="|"> <mrow> <mrow> <mfrac> <mrow> <mrow> <mi>π</mi> </mrow> </mrow> <mrow> <mrow> <mn>5</mn> </mrow> </mrow> </mfrac> <mi>t</mi> </mrow> </mrow> </mfenced> </mrow> </mrow> </math> </span></p>
Option 2 - <p><span class="mathml" contenteditable="false"> <math> <mi>x</mi> <mfenced separators="|"> <mrow> <mrow> <mi>t</mi> </mrow> </mrow> </mfenced> <mo>=</mo> <mo>-</mo> <mn>5</mn> <mrow> <mrow> <mi mathvariant="normal">sin</mi> </mrow> <mo>⁡</mo> <mrow> <mfenced separators="|"> <mrow> <mrow> <mfrac> <mrow> <mrow> <mi>π</mi> </mrow> </mrow> <mrow> <mrow> <mn>5</mn> </mrow> </mrow> </mfrac> <mi>t</mi> </mrow> </mrow> </mfenced> </mrow> </mrow> </math> </span></p>
Option 3 - <p><span class="mathml" contenteditable="false"> <math> <mi>x</mi> <mfenced separators="|"> <mrow> <mrow> <mi>t</mi> </mrow> </mrow> </mfenced> <mo>=</mo> <mn>5</mn> <mo>-</mo> <mn>5</mn> <mrow> <mrow> <mi mathvariant="normal">sin</mi> </mrow> <mo>⁡</mo> <mrow> <mfenced separators="|"> <mrow> <mrow> <mfrac> <mrow> <mrow> <mi>π</mi> </mrow> </mrow> <mrow> <mrow> <mn>5</mn> </mrow> </mrow> </mfrac> <mi>t</mi> </mrow> </mrow> </mfenced> </mrow> </mrow> </math> </span></p>
Option 4 - <p><span class="mathml" contenteditable="false"> <math> <mi>x</mi> <mfenced separators="|"> <mrow> <mrow> <mi>t</mi> </mrow> </mrow> </mfenced> <mo>=</mo> <mo>-</mo> <mn>5</mn> <mo>+</mo> <mn>5</mn> <mrow> <mrow> <mi mathvariant="normal">sin</mi> </mrow> <mo>⁡</mo> <mrow> <mfenced separators="|"> <mrow> <mrow> <mfrac> <mrow> <mrow> <mi>π</mi> </mrow> </mrow> <mrow> <mrow> <mn>5</mn> </mrow> </mrow> </mfrac> <mi>t</mi> </mrow> </mrow> </mfenced> </mrow> </mrow> </math> </span></p>
2 Views|Posted 4 months ago
Asked by Shiksha User
1 Answer
A
4 months ago
Correct Option - 1
Detailed Solution:

ω = 2 π T = π 5 r a d / s

θ ¯ a t t = 0 = 0 0

x = 5 sin ? ω t

x = 5 sin ? π 5 t

 

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Physics NCERT Exemplar Solutions Class 11th Chapter Eight 2025

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