What is the concept of centre of mass ?

Define centre of mass.

Centre of mass of 3 particles 10 kg, 20 kg and 30 kg is at (0, 0, 0). Where should a particle of mass 40 kg be placed so that the combination centre of mass will be at (3,3,3)

A cricket bat is cut at the location of its centre of mass as shown. Then

Define: Centre of mass

Assertion : If there is no external torque on a body about its centre of mass, then the velocity of the centre of mass remains constant. Reason : The linear momentum of an isolated system remains constant.

Find the expression for the acceleration of centre of mass.

Three equal masses each of 1 kg are placed at vertices of an equilateral triangle of side 10m. Find the position of centre of mass.

Choose the correct options Centre of mass of body lies

Three identicle particle each of mass 1 kg are placed with their centres on a straight line. Their centres are marked A, B and C respectively. The distance of centre of mass of the system from A is.

Two bodies of masses m_(1) and m_(2) are separated by a distance R. The distance of the centre of mass of the bodies from the mass m_(1) is