Title: guiding questions
Course: Physics copy 1

The coefficient of static friction is the ratio of the maximum force that can be applied to an object without motion and the normal force.
$$\mu_s=\frac{F_{max}}{F_N}$$

Q: [Image: a free body diagram labelled with vectors]
Match each vector with its description below
- force if gravity | 1
- force of the surface on the crate | 2
- force applied horizontaly to the surface | 3
- force of static friction | 4

Q: A 100 kg box sitting on a level surface is being pushed with horizonatal force of 200 N. Match each vector to its calculation below
- $$100 kg \cdot 9.8\frac{m}{s^2}$$ | 1
- $$- \vec {F_g}$$ | 2
- given | 3
- $$\mu_s \cdot F_N$$ | 4