Four point masses of 10 kg each are placed at the corners of a square PQRS of side 3 cm. Calculate the moment of inertia of the square about an axis coinciding with the side PQ of the square.

Four sphere each of mass 10 kg and of radius 20 cm are placed at the four cornes of a square of side 100 cm. Calculate the moment of inertia of the system about an axis coinciding with side of the square (given moment of inertia of sphere = 2/5 MR^2 )

Four point masses of 5 g each are placed at the four corners fo a square of side 10 cm. Find the moment of inertia of the system (i) about an axis coinciding with one of the sides and (ii) about an axis passing through the point of intersection of the diagonals and perpendicular to the plane of the square.

Four sphere each of mass 10 kg and of radius 20 cm are placed at the four cornes of a square of side 100 cm. Calculate the moment of inertia of the system about an axis coinciding with diagonal of the square. (given moment of inertia of sphere = 2/5 MR^2 )

Four point masses of 20 g each are placed at the corners of a square ABCD of side 5 cm, as shown in Fig. 8.48. find the moment of inertia of the system (i) about an axis coinciding with the side BC and (ii) about an axis through A and perpendicular to the plane of the square.

Charges 1mu coul each are placed at the corners of a squares of side 9 cm. Calculate the potential at the centre of the square.

Three point masses each of mass m are placed at the corners of an equilateral triangle of side b. The moment of inertia of the system about an axis coinciding with one side of the triangle is

Four spheres of diameter a and mass m each are arranged at the corners of a square of side 1. Calculate the moment of inertia of the system about CD taken as its axis.

Four particles each of mass 100g are placed at the corners of a square of side 10 cm. Find the moment of inertia of the system about an axis passing through the centre of the square and perpendicular to its plane. Find also the radius of gyration of the system.