What is centre of gravity ? and how to find the centre of gravity of regular shaped bodies

Question

anonymous · Answer

cog is the portion of the body where the entire weight of the body is supposedly concentrated
or weight mg of body acts thru this point
if u pivot a body at its cog then there wud be no torque in the system

anonymous · Answer

for uniform bodies cog is at the centre of mass
it is usually determined using integration of values using computers

anonymous · Answer

assuming the cog of bodies to be at the com
position of com is given by:
X(X co-ordinate)=(M1X1+M2X2+.....MnXn)/M1+M2+...MN

similar procedure to find Y co-ordinate of com

anonymous · Answer

for triangle it is centroid circle geometric centre like that
GEOMETRIC CENTRE serves as point of com

anonymous · Answer

For regularly shaped bodies,
Center of gravity = Center of mass

So,
$$CoG=(m _{1}x _{1} + ... m _{n}x _{n}) / m _{1} + ... m _{n}$$