1. Sidney’s friends tie three ropes to him and use them to stretch him
Sidney’s friends tie three ropes to him and use them to stretch him! Calculate the resultant force acting on Sidney and hence the direction in which he’ll move.
45N A B
60N
36.87o C
75N

2. Equilibrium 01/08/2018 LO: Define equilibrium
Investigate triangles of forces

3. When an object is in e_________ the resultant force will always be ____.
If a diagram is drawn to add three forces in equilibrium, they will always form a ________.

4. Statics and Dynamics
Mechanics is concerned with the forces acting on a body. When the forces are balanced, the body is said to be in equilibrium. The branch of mechanics that deals with such cases is called statics.
The branch of mechanics that deals with cases not in equilibrium is called dynamics.

5. When there is no acceleration (Constant velocity)
Where else could a system be in equilibrium but not static?
When there is no acceleration (Constant velocity)

6. Use the rules of equilibrium to determine the weight of a hammer.

7. Practice Questions