AP EAMCET · PHYSICS · Gravitation
Three masses \(m, 2 m\) and \(3 m\) are arranged in two triangular configurations as shown in figure 1 and figure 2 . Work done by an external agent in changing, the configuration from figure 1 to figure 2 is
- A \(\frac{6 G m^2}{a}\left[2-\frac{6}{\sqrt{2}}\right]\)
- B 0
- C \(\frac{G m^2}{a}\left[6+\frac{6}{\sqrt{2}}\right]\)
- D \(-\frac{G m^2}{a}\left[6-\frac{6}{\sqrt{2}}\right]\)
Answer & Solution
Correct Answer
(D) \(-\frac{G m^2}{a}\left[6-\frac{6}{\sqrt{2}}\right]\)
Step-by-step Solution
Detailed explanation
Work done to change configuration from 1 to 2 can be calculated by \[ W_{12}=-\left(U_f-U_i\right) \]…
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