Two bodies of masses 2 kg and 4 kg are moving with velocities 2 m/s and 10 m/s respectively along same direction. Then the velocity of their centre of mass will be

Two spheres of masses 1 kg and 2 kg are moving with velocities of 10 m/s and 5 m/s respectively in the same direction. After the collision the velocity of the lighter sphere decreases by 4 m/s. What is the coefficient of restitution?

Two bodies of different masses 2kg and 4kg are moving with velocities 2m//s and 10m//s towards each other due to mutual gravitational attraction. Then the velocity of the centre of mass is

Two bodies of different masses 2kg and 4kg are moving with velocities 2m//s and 10m//s towards each other due to mutual gravitational attraction. Then the velocity of the centre of mass is

Two bodies of mass 4 kg and 5 kg are moving along East and North directions with velocities 5 m//s and 3 m//s respectively. Magnitude of the velocity of centre of mass of the system is

Two bodies of masses 1 kg and 2 kg are moving in two perpendicular direction with velocities 1 m//s and 2 m//s as shown in figure. The velocity of the centre of mass (in magnitide) of the system will be :

Two bodies of masses 2kg and 4 kg are moving with velocities 20 m/s and 10m/s towards each other due to mutual gravitational attraction . What is the velocity of their centre of mass ?

2 bodies of different masses of 2 kg and 4 kg are moving with velocities 20 m//s and 10 m//s towards each other due to mutual gravitational attraction. What is the velocity of their centre of mass?

Two objects of mass 10 kg and 2kg are moving with velocities (2hati-7hatj+3hatk) m//s and (-10hati+35hatj-3hatk) m/s respectively. Calculate the velocity of the centre of mass of the system.