Question

1)Define PE and derive expression for it
2)calculate PE for equilateral triangle
3)calculate PE i) side length outside ii) side length inside
4)calculate PE for square (q1,q2,q3 &q4)
5) isosceles triangle​

Answer 1

ANSWER

Potential energy of system with three particles at distance d=

d

GM

2

+

d

GM

2

+

d

GM

2

=

d

3GM

2

Potential energy of system with three particles at distance 2d=

2d

3GM

2

Thus work done=Change in potential energy=

2d

3GM

2

Answer 2

Answer:

3GM 2

Explanation:

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