Chapter 8.4 Centre of mass

Question 1

What is the definition of the centre of mass?

Answer 1

The centre of mass of an object is the point at which its mass can be thought of as being concentrated.

Question 2

What is the definition of an equilibrium?

Answer 2

Equilibrium, the condition of a system when neither its state of motion nor its internal energy state tends to change with time.

Question 3

What happens when an object is freely suspended?

Answer 3

When an object is freely suspended, it comes to a rest with its centre of mass directly underneath the point of suspension.