1.

A rigid body consists of a 3kg mass locatedat ri=(2і +5)m and a 2kg mass located atT2=(41+2/) m. The position vector ofcentreof masS IS14 1914: 19(19 14

Answer»

Rcm = (m1r1 +m2r2)/(m1+m2)

=> Rcm = (3*2i+3*5j+2*4i+2*2j)/(3+2)=> Rcm = (14i+19j)/5 = 14i/5+19i/5

option 2

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