ExamBro
ExamBro
enEnglishhiहिन्दीguગુજરાતી
JEE Mains · Physics · STD 11 - 6. system of particles and rotational motion

આકૃતિમાં દર્શાવ્યા મુજબ \(50\, g\), \(100\, g\) અને \(150\, g\) દળ ધરાવતા ત્રણ કણને \(1\, m\) લંબાઈ ધરાવતા સમબાજુ ત્રિકોણ પર મૂકેલા છે તો દ્રવ્યમાન કેન્દ્રના  \((x, y)\) યામ શું થશે?

  1. A \(\left( {\frac{{\sqrt 3 }}{7}\,m,\,\frac{7}{{12}}\,m} \right)\)
  2. B \(\left( {\frac{7}{{12}}m,\,\frac{{\sqrt 3 }}{8}\,m} \right)\)
  3. C \(\left( {\frac{{\sqrt 3 }}{4}\,m,\,\frac{5}{{12}}\,m} \right)\)
  4. D \(\left( {\frac{7}{{12}}m,\,\frac{{\sqrt 3 }}{4}\,m} \right)\)
Verified Solution

Answer & Solution

Correct Answer

(D) \(\left( {\frac{7}{{12}}m,\,\frac{{\sqrt 3 }}{4}\,m} \right)\)

Step-by-step Solution

Detailed explanation

The co-ordinates of the center of mass \({\overrightarrow r _{cm}} = \frac{{0 + 150 \times \left( {\frac{1}{2}i + \frac{{\sqrt 3 }}{2}\hat j} \right) + 100 \times \hat i}}{{300}}\) \({\overrightarrow r _{cm}} = \frac{7}{{12}}\hat i + \frac{{\sqrt 3 }}{4}\hat j\)…
Same subject
Explore more questions on app
From JEE Mains
Explore more questions on app