Two balls of equal masses are thrown at the same time in vacuum. While they are in vacuum, the acceleration of their centre of mass

Two balls of equal masses are thrown at the same time in vacuum. While

1.	Two balls of equal masses are thrown at the same time in vacuum. While they are in vacuum, the acceleration of their centre of mass
Answer» depends on MASSES of the balls depends on direction of MOTION of the balls depends on speeds of the balls is equal to acceleration due to GRAVITY ANSWER :D