A point object of mass m is kept at (a, 0) along x-axis. What mass should be kept at (-3a,0), so that centre of mass lies at origin ?

a point mass (m) is located at (0,a) where should th 2m mass be kept ,so that centre of mass lies at origin?

A point mass m is located at (0,a). Where should the 2m mass be kept, so that centre of mass lies at origin

A point object is kept at (1,0,0). A circular plane mirror of radius 1m is kept in yz-plane such that its centre is at the origin. The reflecting side faces positive x-axis At which of the following points can the image of the object be seen?

Two small particles P and Q each of mass m are fixed along x-axis at points (a,0) and (-a,0). A third particle R is kept at origin. Then

Two small particles P and Q each of mass m are fixed along x-axis at points (a,0) and (-a,0). A third particle R is kept at origin. Then

Two rods of equal lengths(l) and equal mass M are kept along x and y axis respectively such that their centre of mass lie at origin. The moment of inertia about an line y = x, is

Two rods of equal lengths(l) and equal mass M are kept along x and y axis respectively such that their centre of mass lie at origin. The moment of inertia about an line y = x, is

A system of two particles is having masses m_(1) and m_(2) . If the particle of mass m_(1) is pushed towards the centre of mass of particles through a distance d, by what distance the particle of mass m_(2) should be moved so as to keep the centre of mass of particles at the original position ?

A particle of mass m is kept on the axis of a fixed circular ring of mass M and radius R at a distance x from the centre of the ring. Find the maximum gravitational force between the ring and the particle.