Physical Science Formula Sheet - \ (\vec {v}_ {\text {f}} = \vec {v}_ {\text {i}} + \vec {a}\delta t\) \ (f_ {\text {k}} = \mu_ {\text {k}}n\) \ (f_ {\text.
\ (\vec {v}_ {\text {f}} = \vec {v}_ {\text {i}} + \vec {a}\delta t\) \ (f_ {\text {k}} = \mu_ {\text {k}}n\) \ (f_ {\text.