Five masses are placed in a plane as shown in figure. The coordinates of the centre of mass are nearest to

Options

A. 1.2, 1.4
B. 1.3, 1.1
C. 1.1, 1.3
D. 1.0, 1.0

Answer

C

Explanation

`X_(C.M)= ( 1 xx 0 + 2 xx 2 + 3 xx 0+4xx2+5xx1)/(1+2+3+4+5)`
`=(4+8+5)/(15)=(17)/(15) = 1.1`
`Y_(c.M) = (1xx 0+2 xx 0+ 3 xx 2 + 4 xx 2+5 xx1)/(1+2+3+4+5)`
` = (6+8+5)/(15) = 1.3`