Question

where is the centre of gravity for ):
-- rod
-- sphere
-- cylinder
-- solid cone
-- square, rectangular lamina
-- triangular lamina
-- ring

Answer 1

Answer:

Explanation:

Rod:

• Midpoint of rod.

Sphere:

• Geometric centre.

Cylinder:

• Midpoint of the axis.

Solid cone:

• One fourth of the height from the base.

Square, rectangular lamina:

• Point of intersection of diagonals.

Triangular lamina:

• Point of intersection of medians.

Ring:

• Centre of ring.

Learn more:

Centre of gravity:

• It is the point about which the algebraic sum of moment of weights of all the particles constituting the body is zero. The entire weight of the body can be considered to act at this point.

Know that:

• The position of centre of gravity of a given body depends on its shape and distribution of mass.
• The position of centre of gravity changes when the body is deformed.
• The position of centre of gravity can lie outside the material of the body.
• Ex: A hollow sphere and boomerang.