In the above problem, if any one point mass is removed then what is gravitational potential and magnitude of filed strength at centre?

Five point masses m each are kept at five vertices of a regular pentagon. Distance of centre of pentagon from any one of the verticle is 'a'. Find gravitational potential and filed strength at centre.

Five point masses m each are kept at five vertices of a regular pentagon. Distance of center of pentagon from any one of the vertice is 'a'. Find gravitational potential and filed strength at center.

Two points masses m each are kept at the two verticle of an equilateral triangle of side 'a' as shows in figure. Find gravitational potential and magnitude of field strength at O .

Two points masses m each are kept at the two verticle of an equaliateral triangle of side 'a' as shows in figure. Find gravitational potential and magnitude of field strength at O .

The gravitational potential at a point due to a point mass is V=

Three point masses 'm' each are kept at three verties of a square pf side 'a' as shown in figure. Find gravitation potential and field strength at point O. .

Three point masses 'm' each are kept at three verties of a square pf side 'a' as shown in figure. Find gravitation potential and field strength at point O. .

Four point masses easch of mass 'm' are placed at four vertieces A, B, C, nd D of a regular hexagon of side 'a' as shown in figure , Find gravitational potential and field strength at the centre O of the hexagon. .

Four point masses easch of mass 'm' are placed at four vertieces A, B, C, nd D of a regular hexagon of side 'a' as shown in figure , Find gravitational potential and field strength at the centre O of the hexagon. .