System of Parti...

Four identical particles each of mass $$"m"$$ are arranged at the corners of a square of side length $$"L"$$. If one of the masses is doubled the shift in the centre of mass of the system w.r.t. diagonally opposite mass.

The momentum of a system is defined

The point through which the total weight appears to act for any orientation of the object is ______.

A uniform meter scale balances horizontally on a knife-edge placed at 55 cm mark, when a mass of 25 g is supported from one end, then the mass of the scale is :

A couple always tends to produce :

The momentum of a system with respect to centre of mass-

The center of mass of a system of particle is at the origin. it follows that :

What torque is required to increase its angular velocity about an axis perpendicular to its plane from zero to $$120$$ rotations/minute in $$8$$ seconds?

A ball kept in a closed container moves in it making collision with the walls. The container is kept on a smooth surface. The velocity of the centre of mass of :

A car sometimes overturns while taking a turn. When it overturns, :