Three point particles of masses 1.0 kg, 1.5 kg and 2.5 kg are placed at three corners of a right angle triangle as shown in figure. The centre of mass of the system is at a point :

Options

A. 1.5 cm left and 1.2 cm above 1.5 kg mass
B. 2.2 cm left and 0.9 cm above 1.5 kg mass
C. 0.6 cm left and 2.0cm above 1.5 kg mass
D. 0.9cm left and 2.0cm above 1.5 kg mass

Answer

C

Explanation

`X_(cm)=(1.5xx0.+1xx3+2.5xx0)/(5)`
=0.6 cm
`Y_(cm)=(1.0xx0+1.5xx0+2.5xx4)/(5)`
=2cm.