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Find the potential energy of 4-particles...

Find the potential energy of 4-particles, each of mass 1 kg placed at the four vertices of a square of side length 1 m.

A

`+4.0G`

B

`-7.5G`

C

`-5.4G`

D

`+6.3G`

Text Solution

Verified by Experts

The correct Answer is:
C
`U=(-4Gm^2)/a-(2Gm^2)/(sqrt2a)`
As a=1m,m=1 kg
`thereforeU=-4G-(2G)/(sqrt2)=-5.4G`
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