Question

Four particles each of mass 1kg,2 kg,3kg,and 4kg are placed at the four vertices a,b,c,d of square of side 1m. Find the position of centre of mass (cm) if the particles. Answer in quora

Answer 1

1 kg at (0,0)  

2 kg at (0,2)  

3 kg at (1,2)  

4 kg at (1,0)  

total mass = 10 kg  

xcg = (1/10)(1*0 +2*0 + 3*1 +4*1) = 7/10  

ycg = (1/10)(1*0 +2*2 + 3*2 +4*0) = 1