Posted by **anna** on Monday, January 3, 2011 at 1:04pm.

consider 4 masses mA=1kg, mB=2kg, mC=3kg, mD=4kg, placed at the vertices of a square ABCD of side 4cm. Specify the position of G the center of mass of the system{A,B,C,D}.

determine the position of G.

Thank you :)

- physics -
**bobpursley**, Monday, January 3, 2011 at 1:53pm
well it is easy.

consider CMx:

CMx*totalmass=mA*locationA+ massB*locationB+ ...

CMx*10kg=1kg*0+2kg*4cm+3kg*4cm+4kg*0

CMx= 20cm/10= 2cm

CMy*10kg= 1kg*0+2kg*0+ 3kg*4cm+4kg*4cm

Cmy= 2.8cm

check my work.

I located the square with A at the origin, B at 4,0, C at 4,4, and D at 0,4

## Answer this Question

## Related Questions

- college physics - Three blocks of mass 1kg,2kg and 3kg move on a frictionless ...
- science - four bodies of mass 1kg, 2kg,3kg, and 4 kg are situated at four ...
- physics(check my answer) - can you tell me what i did wrong on this problem ...
- physics - 3 points particles with masses 4kg,2kg,3kg are at the corners of ...
- chemistry - can you tell me what i did wrong on this problem Rigid rods of ...
- science[physics] - three masses 3kg,4kg,5kg are located at corners of an ...
- physics - Two masses of 2kg,4kg and 6kg are placed at 4 corner of a square of ...
- physics - Consider two masses m1 and m2, connected by a spring of spring ...
- Physics Problem - Could you please check my work? 2. A 2 kg ball of putty moving...
- College Physics - Four masses are positioned at the corners of a rectangle, as ...

More Related Questions