Velocity is the rate at which an object changes position. Rate is measured in time and position is measured in displacement so the formula for velocity becomes \(\vec{v} = { \vec{d} \over t } \)
Velocity is the rate at which an object changes position. What is the formula for velocity?
\(\vec{v} = { \vec{d} \over t } \) 

\(\vec{v} = { t \over \vec{d} } \) 

\(\vec{v} = \vec{d}t \) 

none of these 