Three point masses 1kg, 1.5 kg, 2.5 kg are placed at the vertices of a triangle with sides 3cm,4cm and 5cm as shown in the figure. The location of centre of mass with respect to 1kg mass is :
A. 0.6 cm to the right of 1 kg and 2 cm above 1 kg mass
B. 0.9 cm to the right of 1kg and 2 cm above 1 kg mass
C. 0.9 cm to the left of 1kg and 2 cm above 1kg mass
D. 0.9 cm to the right of 1 kg and 1.5 cm above 1kg mass
