Static Equilibrium

The term Static Equilibrium is used to describe a situation in which an object remains stationary because the total of all forces and torques exerted on it is null. It's essentially a state of balance where both acceleration and net external force become zero, resulting in a constant velocity and rotational speed for the object.

Finding Mass

A 2m long uniform beam is supported at either end. A weight is hung 0.5m from the left support. If the weight is causing a clockwise moment of 100Nm, what is the mass of the weight?

Finding Density

3. Will a \( 120-\mathrm{kg} \) raft of density \( 700 \mathrm{~kg} / \mathrm{m}^{3} \) hold a \( 60-\mathrm{kg} \) person above water? Show all your work.