Three masses 200 kg, 300 kg and 400 kg are placed at the vertices of an equilateral triangle with side 20 m. They are rearranged on the vertices of a bigger triangle of side 25 m and with the same centre. The work done in this process is __________ J.

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Solution

Q.
Three masses 200 kg, 300 kg and 400 kg are placed at the vertices of an equilateral triangle with side 20 m. They are rearranged on the vertices of a bigger triangle of side 25 m and with the same centre. The work done in this process is __________ J.

(Gravitational constant $G = 6.7 \times 10^{- 11} {N m}^{2} / {kg}^{2}$ ) [2026]

1 $2.85 \times 10^{- 7}$

2 $1.74 \times 10^{- 7}$

3 $9.86 \times 10^{- 6}$

4 $4.77 \times 10^{- 7}$

Ans.
(2)

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