Q. A bomb of mass 'm' at rest at the coordinate origin explodes into three equal pieces. At a certain instant one piece is on the x-axis at x = 40 cm and another is at x = 20 cm, y = 60 cm. The position of the third piece is
1) x = 60 cm, y = 60 cm 2) x = 60 cm, y = 60 cm
3) x = 60 cm, y = 60 cm 4) x = 60 cm, y = 60 cm
