Initial Velocity

Initial velocity, abbreviated as \(v_i\), is the starting point at which motion begins.

 

Initial velocity formula
\( v_i \;=\; v_f - a \; t \)
Symbol	English	Metric
\( v_i  \) = initial velocity	\(ft\;/\;sec\)	\(m\;/\;s\)
\( v_f  \) = final velocity	\(ft\;/\;sec\)	\(m\;/\;s\)
\( a \) = acceleration	\(ft\;/\;sec^2\)	\(m\;/\;s^2\)
\( t \) = time	\( sec \)	\( s \)

  

Initial velocity formula
\( v_i \;=\; ( s \;/\; t )  - ( \frac{1}{2} \; a \; t  )\)
Symbol	English	Metric
\( v_i  \) = initial velocity	\(ft\;/\;sec\)	\(m\;/\;s\)
\( s \) = displacement	\( ft \)	\( m \)
\( t \) = time	\( sec \)	\( s \)
\( a \) = acceleration	\(ft\;/\;sec^2\)	\(m\;/\;s^2\)

  

Initial velocity formula
\( v_i \;=\; \sqrt{ v_f - ( 2 \; a \; d ) }  \)
Symbol	English	Metric
\( v_i  \) = initial velocity	\(ft\;/\;sec\)	\(m\;/\;s\)
\( v_f  \) = final velocity	\(ft\;/\;sec\)	\(m\;/\;s\)
\( a \) = acceleration	\(ft\;/\;sec^2\)	\(m\;/\;s^2\)
\( d  \) = distance	\(ft\)	\(m\)