Question

The potential energy of 4 – particles each of mass 1 kg placed at the four vertices of a square of side length 1m is

Answer 1

Answer:

2.707 G

Explanation:

Let the potential energy be U1, U2, U3 and U4.

Potential Energy with U1 = 0

Potential Energy with U2 = Gm²/r = G  here r = 1m , m = 1kg

Potential Energy with U3 = Gm²/r = G  here r = 1m , m = 1kg

Potential Energy with U4 = Gm²/r = G/√2  here r = 1m , m = 1kg

Total Potential Energy = U1 + U2 +U3 + U4

Total Potential Energy = 0 + G + G + G/√2

Total Potential Energy = 2.707 G