10.1 force diagrams, 10.2 forces as vectors, 10.3 forces and acceleration

What is a force diagram?

Example 1

When is an object sais to be in equilibrium?

When the forces acting upon the object are balanced

What does constant velocity mean?

Neither the speed nor direction is changing

What is Newton’s first law?

Example 2

You can write forces as vectors using i-j notation or as column vectors.

How do you find the resultant force with forces given in vectors?

By adding the vectors

What will the resultant vector force be when a particle is in equilibrium?

0i + 0j

Example 3

Example 4

What is Newton’s second law?

How do you calculate weight?

Mass x gravity

Example 5

Example 6

Example 7