Question

When balancing a ruler on your finger, the point of balance is the ruler's ______.

Options

• Densest point

• Centre of Gravity (which coincides with Centre of Mass)

• Longest point

• Heaviest end

Answer 1

When balancing a ruler on your finger, the point of balance is the ruler's centre of gravity (which coincides with the centre of mass).

Explanation:

The balance point is where c.g. equals c.m. on Earth, where all gravitational effects act through that single point.